At the Intersection of uṣūl al-fiqh and kalām: The Commentary Tradition on Ṣadr al-Sharīʿa al-Thānī’s al-Muqaddimāt al-arbaʿ

Ṣadr al-Sharīʿa al-Thānī al-Maḥbūbī (d. 747/1346) was the last major Māturīdī theologian of Transoxania. As he left no work of rational theology (kalām) proper, one of the chief sources of his theological thought is his book on legal theory, al-Tawḍīḥ fī ḥall ghawāmiḍ al-Tanqīḥ. Because the work served as a prominent reference for both legal theory and rational theol­ogy, an extensive commentary tradition on it emerged as it was transmitted from Transoxania to South Asia, Anatolia, and the Arab world. A distinctive subfield of this commentary tradition consisted of glosses devoted exclusively to one specific section of al-Tawḍīḥ. Revolving around the nature of good and evil, and intimately linked to the question of human free will, this part of Ṣadr al-Sharīʿa’s text came to be treated as a separate work, commonly referred to as al-Muqaddimāt al-arbaʿ (“The four pro­legomena”). Due to its role as a highly sophisticated refutation of late Ashʿarī doctrine on human volition, al-Muqaddimāt al-arbaʿ eventually developed into a prime source for later Māturīdī scholars in their discussion of human volition and related topics.