ابنُ رُشد [أَفِيرُوِيس] — الفَيلَسُوفُ الفَقِيهُ القُرطُبِيُّ الَّذِي حَوَّلَت تَعلِيقَاتُهُ عَلَى أَرِسطُو المَدرَسِيَّةَ الأُورُوبِّيَّةَ الوَسِيطَة وَصَاحِبُ بِدَايَةِ المُجتَهِدِ الَّذِي لَا يَزَالُ أَكبَرَ دَلِيلٍ لِلفِقهِ المُقَارَن وَصَاحِبُ تَهَافُتِ التَّهَافُتِ الَّذِي رَدَّ بِهِ عَلَى هُجُومِ الغَزَالِي عَلَى الفَلسَفَة
Ibn Rushd (ابنُ رُشد; known in Latin Europe as Averroes; full name: Abu al-Walid Muhammad ibn Ahmad ibn Muhammad ibn Rushd; born 520 AH / 1126 CE in Cordoba, Almoravid/Almohad al-Andalus; died 595 AH / 1198 CE in Marrakesh; the background: born into a distinguished family of Maliki judges — his grandfather Abu al-Walid ibn Rushd the Elder was Chief Qadi of Cordoba and a leading Maliki scholar; his own father was a Maliki jurist; Ibn Rushd became Chief Qadi of Seville and later Cordoba; his introduction to philosophy: Ibn Rushd's introduction to philosophy came through the philosopher Ibn Tufayl [author of Hayy ibn Yaqzan], who introduced him to the Almohad court of Abu Yaqub Yusuf; the Almohad caliph reportedly said 'What does the philosopher say about the heavens — are they eternal or created in time?'; the Aristotle project: Ibn Rushd wrote three types of commentary on Aristotle: [1] Short commentaries [jawami'] — summaries; [2] Middle commentaries [talkhisat] — paraphrases; [3] Long commentaries [tafsir] — detailed word-by-word analysis; these were the most comprehensive Aristotle commentaries in any medieval tradition; translation: Latin translations (Corpus Averroicum) were completed by 1220s-1230s; they became the central vehicle through which Aristotle re-entered Western Europe; 'The Commentator' is how Thomas Aquinas and Albert the Great referred to Ibn Rushd — he was simply THE authority on Aristotle; Averroism: a philosophical movement in 13th-14th century European universities (especially Paris) based on Ibn Rushd's interpretations, particularly the 'unity of the intellect' thesis (all humans share one agent intellect); the Paris condemnations of 1277 targeted Averroist theses; major Islamic works: [1] Bidayat al-Mujtahid wa-Nihayat al-Muqtasid [The Beginning for the Independent Scholar and the End for the Economizing Scholar]: a systematic comparative fiqh work that examines every major legal issue, presents the positions of the four schools with their reasoning, and explains WHY scholars disagreed; still considered the greatest manual of comparative fiqh; [2] Tahafut al-Tahafut [The Incoherence of the Incoherence]: point-by-point response to al-Ghazali's Tahafut al-Falasifa [Incoherence of the Philosophers]; Ibn Rushd defended philosophy while conceding that al-Ghazali correctly identified three claims as problematic (eternal world, God's particular knowledge, bodily resurrection) but argued al-Ghazali misrepresented what philosophers actually said; [3] Fasl al-Maqal [Decisive Treatise]: argued that philosophy is obligatory for those capable of it; the apparent conflict between reason and revelation must be resolved through ta'wil (allegorical interpretation) of revelation; [4] Al-Kulliyat [Generalities in Medicine]: medical compendium; the exile: in 1195 CE, under Almohad Caliph al-Mansur facing political pressure from conservative religious scholars, Ibn Rushd was publicly humiliated, exiled to Lucena, and his philosophical works were burned; he was rehabilitated shortly before his death in 1198; legacy: Ibn Rushd died in Marrakesh; his philosophical influence in Europe vastly exceeded his influence in the Islamic world; European scholasticism's encounter with Aristotle through Averroes shaped medieval Christian theology more than it shaped subsequent Islamic thought) is the hinge figure between Islamic philosophy and European Scholasticism.
Thomas Aquinas, when he cited Aristotle, often simply wrote “the Commentator says” — and every reader knew this meant Ibn Rushd. The Cordoban philosopher-jurist’s systematic commentaries on the entire Aristotelian corpus, translated into Latin by the 1220s, reintroduced Aristotle to a Western Europe that had lost direct access to most of his texts.
The paradox of Ibn Rushd’s legacy: his philosophical influence was dramatically greater in Europe than in the Islamic world. Averroism (the school of thought derived from his interpretations, particularly the “unity of the intellect” thesis) became a significant movement in medieval European universities. The Paris condemnations of 1277 explicitly targeted Averroist theses. Ibn Rushd thus shaped Latin scholasticism in ways his own tradition largely did not absorb.
Bidayat al-Mujtahid: Still Unmatched
For Islamic jurisprudence, Ibn Rushd’s Bidayat al-Mujtahid (The Beginning for the Independent Scholar) is a different kind of achievement. Organized issue by issue, it presents the positions of all major legal schools with their reasoning and — crucially — explains why scholars disagreed. The method is diagnostic: Ibn Rushd identifies whether a dispute traces to different hadith, different methods of analogical reasoning, or different readings of the same text. This diagnostic approach makes it the most intellectually honest comparative fiqh manual ever produced.
Tahafut al-Tahafut: Defending Philosophy
Al-Ghazali’s Tahafut al-Falasifa had identified three philosophical claims as kufr (disbelief): the eternity of the world, God’s lack of particular knowledge, and the denial of bodily resurrection. Ibn Rushd’s response defended philosophy while conceding al-Ghazali had found genuinely difficult points — but argued al-Ghazali fundamentally misunderstood what Aristotelian philosophers actually claimed.
See also: Seerah Al Ghazali, Seerah Ibn Hazm, Seerah Al Juwayni, Fiqh Al Ijtihad Wal Taqlid, Fiqh Al Usul Al Fiqh