Fakhr Al-Din Al-Razi - The Great Commentary

In Islamic theology, Razi's major work was the Tafsir-e Kabir (The Great Commentary), his eight-volume Tafsir (exegesis) on the Qur'an, also named as Mafatih al-Ghayb (The Keys to the Unknown). This work contains much of philosophical interest. One of his "major concerns was the self-sufficiency of the intellect." He believed that proofs based on tradition (hadith) "could never lead to certainty (yaqin) but only to presumption (zann), a key distinction in Islamic thought." However, his "acknowledgement of the primacy of the Qur'an grew with his years." Al-Razi's rationalism undoubtedly "holds an important place in the debate in the Islamic tradition on the harmonization of reason and revelation."