Ibn al-Humam

Kamal ad-Din Muhammad ibn Abdul-Wahid ibn al-Humam (790-861 AH / 1388-1457 CE) was one of the most brilliant Hanafi jurists of the later medieval period and the author of Fath al-Qadir (The Opening of the All-Powerful), the most celebrated commentary on al-Marghinani's al-Hidayah. Born in Alexandria, he studied in Cairo under the leading Hanafi and hadith scholars of the Mamluk period and became recognized as the foremost mujtahid of the Hanafi school in his era.

Ibn al-Humam's Fath al-Qadir is distinctive for its unique methodology of combining the two major approaches to Hanafi legal commentary: the narration-based approach (dirayah), which focuses on the textual evidence from hadith, and the reason-based approach (riwayah), which focuses on the internal legal reasoning of the school. By synthesizing both, he produced a commentary that is both rigorously evidence-based and deeply analytical in its legal reasoning. The work is incomplete, covering the first part of al-Hidayah; it was later completed by his student Qadi Zadeh under the title Nataij al-Afkar. He also authored at-Tahrir fi Usul al-Fiqh, an important work on Hanafi legal theory.

Ibn al-Humam was known for his sharp intellect, independent legal reasoning, and willingness to follow the evidence even when it led him away from the established Hanafi positions. He died in Cairo in 861 AH (1457 CE). His Fath al-Qadir remains the most important advanced commentary on al-Hidayah and is an essential reference for serious students of Hanafi jurisprudence.