Ibn al-Qayyim: The Comprehensive Scholar and Legal Reformer

Muhammad ibn Abi Bakr ibn Ayyub ibn Sa'd az-Zar'i, known as Ibn Qayyim al-Jawziyya (691–751 AH / 1292–1350 CE), was the most important student and intellectual successor of Ibn Taymiyyah and one of the most original Islamic scholars of the post-Mongol period. Born in Damascus into a scholarly family — his father was the caretaker (qayyim) of the Jawziyyah school, giving Ibn al-Qayyim his distinctive title — he received a thorough Hanbali education before becoming deeply immersed in Ibn Taymiyyah's intellectual world.

His relationship with Ibn Taymiyyah was transformative. For approximately seventeen years, he studied under the great reformer, participated in his debates and struggles, and accompanied him into imprisonment. When Ibn Taymiyyah died in the Citadel prison of Damascus in 728 AH, Ibn al-Qayyim had already absorbed the full depth of his teacher's approach and was equipped to develop it further in directions that were distinctly his own. Where Ibn Taymiyyah was primarily a theologian, polemicist, and legal theorist, Ibn al-Qayyim had a broader range of spiritual and literary interests and wrote with an elegance and depth that gave his works a different character.

Ibn al-Qayyim's output was prodigious and covered an extraordinarily wide range: legal theory (I'lam al-Muwaqqi'in), spiritual psychology (Madarij as-Salikin, Miftah Dar as-Sa'ada), medicine (Tibb an-Nabawi, Zad al-Ma'ad), eschatology (al-Ruh), Quranic commentary, poetics (al-Kafiyah ash-Shafiyah, known as an-Nuniyya, a long theological poem), and much more. This breadth, combined with the quality of his analysis and his distinctive prose style, has made him one of the most widely read classical Islamic scholars of the modern period.

I'lam al-Muwaqqi'in an Rabb al-Alamin (Informing Those Who Issue Legal Opinions on Behalf of the Lord of the Worlds) is his masterwork in legal theory and the philosophy of Islamic law. Its title — addressing those who issue fatwas 'on behalf of the Lord' — signals both the seriousness with which it takes the enterprise of legal pronouncement and the framework within which that enterprise should be conducted.