The Islamic Concept of Knowledge
The Islamic Concept of Knowledge
It is still debated whether a fully explicit, systematic “Islamic epistemology” exists. What is beyond dispute, however, is that Muslim philosophers and theologians have long discussed questions about knowledge in ways that differ significantly from Western epistemology. Today, many scholars are trying to re‑examine fundamental questions of knowledge through this distinct Islamic lens. Their efforts are valuable and worth encouraging, as long as they remain grounded in rigorous analysis and clear definitions of key concepts.
This article focuses on one of the most important of those concepts: ʿilm, usually translated as “knowledge.” We will look at its shades of meaning in the Islamic tradition and what they imply for an Islamic theory of knowledge.
ʿIlm: More Than “Knowledge”
In Arabic, the word for knowledge is ʿilm. As Franz Rosenthal and others have pointed out, this term carries a far richer and broader meaning than its usual equivalents in European languages. “Knowledge” in English commonly refers to information about things—material or spiritual. ʿIlm, by contrast, is comprehensive: it covers theory, practice, and education.
Rosenthal stresses that ʿilm gives Islamic civilization its distinctive character. No other single concept has shaped Muslim religious, intellectual, political, and everyday life as deeply as ʿilm. It even rivals terms central to Muslim piety such as tawḥīd (the oneness of God) and ad‑dīn (the true religion). While theologians may hesitate to equate Islam itself with ʿilm in a strict technical sense, their intense debates about ʿilm testify to its fundamental importance. Islam can rightly be described as a path of knowledge.
No other religion or ideology has emphasized the value of knowledge as strongly as Islam. In the Qur’an, the word ʿālim appears about 140 times, and al‑ʿilm appears in 27 verses. Counting all derivatives and related terms, references to knowledge exceed 700 verses. Words related to the tools of knowledge—such as book, pen, and writing—appear with similar frequency. For example, qalam (pen) is mentioned twice, and al‑kitāb (book) appears in about 230 verses, including 81 where it specifically denotes the Qur’an. Other terms connected to writing appear in more than 300 verses. This repeated pairing of pen and book underscores their essential role in acquiring knowledge.
Significantly, revelation itself begins with the command iqra’—”read” or “recite.” According to the Qur’an, the very first lesson for Adam began soon after his creation, when God taught him “all the Names”. Allah is thus presented as the first teacher and the ultimate guide of humanity, granting Adam knowledge not even given to the angels.
Types and Scope of ʿIlm
A tradition in Uṣūl al‑Kāfī, narrated from Imam Mūsā al‑Kāẓim (ʿa), states that ʿilm is of three types:
- Āyātun muḥkamah – firm, irrefutable signs of God.
- Farīḍatun ʿādilah – just and balanced obligations.
- Sunnatun qā’imah – established traditions of the Prophet (S).
This classification implies that the knowledge whose pursuit is obligatory for all Muslims includes theology, philosophy, law, ethics, politics, and the guiding wisdom conveyed to the Ummah through the Prophet (S).
Al‑Ghazālī later distinguished between useful and useless knowledge, and many have taken this to mean that some types of knowledge are inherently harmful. From a broader Islamic perspective, however, what is condemned in the Qur’an is not knowledge as such, but pseudo‑knowledge—superstitions and empty lore rooted in the ignorance (jāhiliyyah) that Islam came to dispel.
We can speak of three broad types of ʿilm:
- Information in contrast to ignorance.
- Knowledge of natural laws and patterns in creation.
- Knowledge based on conjecture or speculation.
The first two types are clearly beneficial and their pursuit is encouraged, even obligatory. The third type—conjectural or doubtful knowledge—requires more nuance. Conjecture and doubt can sometimes be useful as means on the way to certainty, but not as final resting places.
The Qur’an and hadith repeatedly urge Muslims to seek all beneficial forms of knowledge, wherever they may be found. Yet in times of intellectual decline, many Muslims narrowed “obligatory knowledge” almost exclusively to theology. This narrowing is often blamed on al‑Ghazālī’s critique of certain philosophical and scientific disciplines. In reality, Ghazālī went through a period of skepticism in his search for certainty, and he eventually found that certainty not in purely discursive reasoning, but through spiritual experience. He helped free believers from blind imitation and prepared them to strive toward true, well‑founded conviction.
ʿIlm and Maʿrifah: Knowledge and Gnosis
In Islamic thought, especially in the mystical tradition, a distinction is made between maʿrifah (gnosis) and knowledge acquired through logical processes. In the Greek‑influenced philosophical world outside Islam, ḥikmah (wisdom) was often considered higher than knowledge. In Islam, however, ʿilm is not merely abstract information; it is closely intertwined with maʿrifah, an inner, experiential knowing.
Islam recognizes two main sources of knowledge:
- ʿAql – intellect and rational reflection.
- ʿIlm ḥuḍūrī – direct, unmediated knowledge, often associated with mystical or spiritual experience.
The Qur’an and hadith strongly emphasize the use of the intellect, particularly in matters of ijtihād (independent reasoning). In the Sunni tradition, qiyās (analogical reasoning), especially as developed by Imām Abū Ḥanīfah, became a recognized tool of ijtihād. His teacher and spiritual guide, Imām Jaʿfar al‑Ṣādiq (ʿa), however, gave greater priority to ʿaql itself.
In Shiʿi jurisprudence and legal theory, ʿaql is more central, while qiyās is treated with caution as a limited, quasi‑logical method. ʿAql, by contrast, is understood to include the full range of human rational capacities, including higher forms of intuition and insight.
Shiʿi hadith collections, beginning with Uṣūl al‑Kāfī, typically open with chapters on the merits of intellect (ʿaql) and the virtues of knowledge (ʿilm). Major Sunni collections, including the Ṣiḥāḥ al‑Sittah and later works like al‑Ghazālī’s Iḥyāʾ ʿUlūm al‑Dīn, also devote sections to these themes, even if they do not always place them at the very beginning. This broad consensus highlights the central role of reason—expressed in the Qur’an with terms such as taʿaqqul, tafaqquh, and tadabbur—in the life of faith.
In the twentieth century, Muhammad Iqbal, in The Reconstruction of Religious Thought in Islam, argued that ijtihād is a dynamic principle at the heart of Islam. Long before Francis Bacon, he claimed, the Qur’an had emphasized observation and experimentation as paths to sound conclusions. Muslim jurists and exegetes also used linguistic and textual analysis in interpreting Qur’anic injunctions and Prophetic traditions. Al‑Ghazālī’s Tahāfut al‑Falāsifah (Incoherence of the Philosophers) is noteworthy in this regard: it employs analytical and linguistic methods to probe philosophical problems. In many ways, Ghazālī has been misunderstood—both by rigid traditionalists and by overly liberal interpreters. His method of critical doubt could have stimulated ongoing intellectual vitality; tragically, historical and social conditions helped turn this impulse into a period of stagnation instead.
Wisdom and Knowledge: No Divide in Islam
Under Greek influence, pre‑Islamic and early non‑Islamic philosophers often distinguished sharply between wisdom (ḥikmah) and knowledge. In Islam, by contrast, this separation is artificial. Those who insisted on it often led Muslim thought away from its own foundations.
Some philosophers such as al‑Kindī, al‑Fārābī, and Ibn Sīnā were styled ḥukamāʾ (sages/philosophers) and considered superior to jurists and scholars of the outward sciences. This hierarchy contributed to al‑Ghazālī’s critique of the philosophers. Islam, however, invites its followers to use their intellect and knowledge to seek the ultimate truth (al‑ḥaqq). Muslim thinkers chose different paths toward this goal. The philosophers devoted themselves to logic and rigorous methodology; many Sufis emphasized spiritual purification and inner unveiling-yet some figures, such as Ibn Sīnā, al‑Fārābī, and al‑Ghazālī himself, combined both rational and mystical approaches at different stages of their lives.
Al‑Hujwīrī, in Kashf al‑Maḥjūb, distinguishes between khabar (secondhand information) and naẓar (reflective, analytic thought). This distinction applies to both Sufis and philosophers, who sought a form of knowledge that encompasses all realities, seen and unseen.
In Western philosophy, religious knowledge is often treated separately from knowledge of the physical world. In Islam, there is no such rigid division. Maʿrifah—true gnosis—is ultimate knowledge, and it arises from self‑knowledge: “Whoever knows himself knows his Lord” (man ʿarafa nafsahu faqad ʿarafa rabbahu). Knowing one’s own soul necessarily includes an understanding of the created world.
Thus, in an Islamic perspective, wisdom and knowledge are not two competing categories. They are different aspects of the same reality: a unified, God‑oriented understanding that integrates the material and the spiritual.
Doubt, Certainty, and Faith
A key question in any theory of knowledge is how one overcomes doubt about beliefs concerning God, the universe, and the human being. It is often assumed that Islam leaves no room for questioning fundamental beliefs—such as God’s existence, the Prophethood of Muhammad (S), or divine law—and demands blind, unquestioning submission. This assumption does not stand up to scrutiny.
Given the Qur’anic emphasis on ʿaql, Islam actually encourages the believer to reach certainty (yaqīn) through reflection and sincere inquiry. In the fundamentals of faith (uṣūl al‑dīn), the believer is required to accept tawḥīd (divine unity), nubuwwah (prophethood), and maʿād (resurrection)—and, in Shiʿi theology, ʿadl (divine justice) and imāmah (leadership)—on rational or experiential grounds, not merely by imitation.
Sufi authors describe faith (īmān) in terms of three ascending levels:
- ʿIlm al‑yaqīn – knowledge of certainty (intellectual conviction).
- ʿAyn al‑yaqīn – eye of certainty (as if seeing the truth directly).
- Ḥaqq al‑yaqīn – reality of certainty (where knower and known become deeply united).
The highest level is reserved for a select few, but the path toward it is open in principle.
The Qur’an frequently associates ʿilm with light (nūr). Allah is described as the Light of the heavens and the earth, and knowledge is portrayed as a ray of this divine light. Doubt and ignorance, by contrast, are symbolized as darkness. Verses such as āyat al‑kursī and others depict God as the One who guides believers from darkness into light.
Some Muslim thinkers, including certain Muʿtazilites like al‑Naẓẓām, al‑Jāḥiẓ, and Abū Hāshim al‑Jubbāʾī, explored skeptical questions as a way of clarifying and strengthening religious belief. Al‑Ghazālī’s spiritual autobiography, al‑Munqidh min al‑Ḍalāl (Deliverance from Error), is a classic account of the skeptical path used as a method to attain certainty.
Scepticism itself has several meanings-outright denial of knowledge, agnosticism, or a deliberate method for reaching secure belief. Most Muslim philosophers and theologians rejected scepticism as a doctrine that denies the possibility of knowledge, but they accepted it as a method for moving from uncertainty to certainty. Islam rejects blind faith but welcomes sincere questioning that leads to firm conviction.
Shaykh al‑Mufīd, a major Shiʿi jurist, famously warned that mere imitation of scholars leaves a person perilously close to unbelief, because it lacks personal understanding. Islam thus insists that ʿilm must be internalized and rationally grounded.
Knowledge, Action, and Society
In Islam, ʿilm is not simply a matter of collecting information. It is deeply connected to moral character, social justice, and political responsibility. True knowledge calls the believer to act upon what they know and to commit themselves to the higher aims of Islam.
A telling tradition narrated by Imam ʿAlī ibn Abī Ṭālib (ʿa) describes how Jibrīl came to Adam with three gifts: faith (īmān), modesty (ḥayāʾ), and intellect (ʿaql), and told him to choose one. Adam chose ʿaql. When Jibrīl ordered the other two to return, they replied that they had been commanded by Allah to remain wherever intellect resides. This narration beautifully illustrates how faith and moral refinement are inseparable from sound intellect and true knowledge.
The comprehensive notion of ʿaql and ʿilm in Islam underlies the development of all branches of knowledge-Religious, natural, and social. From the late first Islamic century onward, Muslim scholars made remarkable advances in natural sciences, mathematics, medicine, and other disciplines. This flourishing culminated in institutions such as the Bayt al‑Ḥikmah (House of Wisdom) in the time of Caliph al‑Maʾmūn.
While many of the great contributors to philosophy and science were of Persian origin, it is false to claim— as some Orientalists have—that the Qur’an and Sunnah themselves lacked any philosophical or scientific spirit. On the contrary, they not only encouraged but often made it obligatory to seek truth wherever it may be found. Some Prophetic traditions praise the scholar’s efforts more than supererogatory acts of worship, even comparing the ink of scholars favorably with the blood of martyrs.
Imam ʿAlī (ʿa) is reported to have said that the reward for piety in the hereafter is proportional to one’s intellectual development and knowledge. Islam did not limit “useful knowledge” to theology while dismissing empirical sciences as harmful. The suspicion toward the rational and empirical sciences came later, often from half‑educated preachers and court‑aligned scholars who preferred an unthinking populace. Their hostility extended not only to philosophy but even to ʿilm al‑kalām (theology) and metaphysics, contributing to political, economic, and intellectual decline.
Yet many leading scholars-hiʿi and Sunni alike—rejected such anti‑intellectual attitudes. Figures like Shaykh al‑Mufīd on the Shiʿi side, and Ibn Taymiyyah, Ibn al‑Qayyim, Jalāl al‑Dīn al‑Suyūṭī, Ibn Ḥazm, and many others among Sunnis, explicitly criticized blind imitation (taqlīd) and insisted on the duty of ijtihād and the use of ʿaql. Imam ʿAlī (ʿa) gave reason a central place even in religious matters, and the poet‑thinker Abū al‑ʿAlāʾ al‑Maʿarrī famously declared that there is no imām except reason.
Thus, despite their theological differences, the major Sunni and Shiʿi schools historically agreed on the fundamental importance of reason and ijtihād.
Misconceptions and Orientalist Myths
In more recent times, some revivalist movements in parts of the Sunni world—such as in Egypt, Saudi Arabia, Morocco, Algeria, and Sudan—have adopted a suspicious stance toward rational inquiry. They promote imitation and downplay ijtihād, sometimes even distorting the legacy of earlier Salafi scholars who themselves valued reason.
At the same time, Orientalist scholarship has advanced its own myths. One such claim is that the “Arab mind” is inherently unsuited to philosophy, and that it was the “Aryan” (Persian) mind that introduced philosophy into Islam. Yet the same scholars then speak of “Arab philosophy”, revealing a deep contradiction and prejudice.
History tells a different story. After the Qur’an and Prophetic hadith, the sermons and letters of Imam ʿAlī (ʿa), collected in Nahj al‑Balāghah, contain some of the earliest seeds of philosophical and scientific reflection—and he was Arab. The Muʿtazilah, often described as the first rationalists among Muslims, were largely Arab. Al‑Kindī, widely considered the first Muslim philosopher, was Arab. Later, as philosophy and science declined in the eastern Islamic lands, they flourished in the western Muslim world through the efforts of thinkers like Ibn Rushd (Averroes), Ibn Ṭufayl, and Ibn Bājja—all of whom made major contributions to logic, metaphysics, and the natural sciences. Ibn Khaldūn, the father of sociology and the philosophy of history, further developed lines of thought that can be traced back to earlier Muslim ethical and political thinkers such as Miskawayh, al‑Dawwānī, and Naṣīr al‑Dīn al‑Ṭūsī.
Al‑Fārābī deserves special mention for his systematic treatment of social and political philosophy. His works— such as Madinat al‑Fāḍilah, Ārāʾ Ahl al‑Madinat al‑Fāḍilah, al‑Millah al‑Fāḍilah, al‑Siyāsah al‑Madaniyyah, and others—address issues of ethics, politics, and the virtuous community in a profoundly integrated way.
Muslim thinkers never confined themselves solely to abstract theology. They grappled with economic, social, and political realities, and their work significantly enriched global civilization. Many of them paid a price for their intellectual courage, facing accusations of heresy from those opposed to ijtihād and critical inquiry. Figures such as al‑Ghazālī, Ibn Rushd, Ibn Bājja, Ibn al‑Haytham, Ibn ʿArabī, Mullā Ṣadrā, and, in more recent times, Sayyid Ahmad Khan, Iqbal, and al‑Mawdūdī all encountered such hostility.
Among their achievements we should also recall the Ikhwān al‑Ṣafāʾ (Brethren of Purity), a group of scholars—often associated with an Ismāʿīlī Shiʿi background—who produced a vast set of “Epistles” covering philosophy, mathematics, natural science, and ethics. Their work can be regarded as one of the earliest encyclopedic projects in world intellectual history.
Conclusion: An Integrated Islamic Theory of Knowledge
From this brief survey, we can see that the Islamic concept of ʿilm goes far beyond a narrow epistemology. It unites knowledge, insight, and social action. It is rooted in revelation, nurtured by reason, and completed by spiritual experience. It refuses to separate wisdom from knowledge, or faith from inquiry.
In Islam, knowledge is light, and this light guides individuals and societies from darkness to clarity, from superstition to understanding, and from passive imitation to responsible, creative engagement with the world. The historical flourishing of science, philosophy, and the arts in Muslim civilization-and their profound influence on global thought-would have been impossible without this distinctive and powerful concept of ʿilm.