Majmu' al-Fatawa (Collection of Fatwas)

مجموع الفتاوى

A massive compilation of Ibn Taymiyyah's legal opinions, theological treatises, and responses to questions on virtually every topic in Islam. Collected and organized by scholars after his death, this 37-volume work covers creed, worship, jurisprudence, Sufism, logic, philosophy, and polemics. It is the single most comprehensive source for understanding Ibn Taymiyyah's thought and methodology.