Muhammad ash-Shaybani

Muhammad ibn al-Hasan ash-Shaybani (749-805 CE) was one of the two most important students of Imam Abu Hanifah and the principal codifier of the Hanafi school of jurisprudence. Born in Wasit, Iraq, he grew up in Kufa and began studying under Abu Hanifah as a teenager. After Abu Hanifah's death, he continued his studies under Abu Yusuf and also traveled to Medina to study under Imam Malik for three years, attending his classes on al-Muwatta.

Ash-Shaybani's greatest contribution was systematically recording and organizing the Hanafi legal opinions in six foundational texts known collectively as Zahir ar-Riwayah (The Manifest Narrations): al-Mabsut, az-Ziyadat, al-Jami as-Saghir, al-Jami al-Kabir, as-Siyar as-Saghir, and as-Siyar al-Kabir. These works preserved the legal opinions of Abu Hanifah, Abu Yusuf, and ash-Shaybani himself in a systematic format that became the authoritative reference for the Hanafi school. Without his codification, much of Abu Hanifah's legal thinking would have been lost.

Ash-Shaybani also authored Kitab al-Asl (also known as al-Mabsut), one of the most comprehensive works of fiqh ever written. Imam ash-Shafii studied under him and was deeply influenced by his methodology, later saying, 'I have not seen anyone more eloquent than Muhammad ibn al-Hasan.' Ash-Shaybani served as a judge under Harun ar-Rashid and died in the city of Ray (near modern Tehran) in 189 AH (805 CE) on the same day as the famous grammarian al-Kisai, prompting Harun ar-Rashid to say, 'I buried fiqh and Arabic today.'