He wrote al-Mu'tamad fi Usul al-Fiqh (The Canon of the Foundations of Jurisprudence), a major source of influence in informing the foundations of Islamic jurisprudence until Fakhr al-Din al-Razi's al-Mahsul fi 'Ilm al-Usul (The Compilation of the Fundamentals of the Legal Sciences).
The text describes the impact of his work on Islamic jurisprudence, highlighting its influence until the later work of Fakhr al-Din al-Razi.