Al-Jaṣṣās (الجصاص, 305 AH/917 AD[2] - 370 AH/981 AD;[3] full name Abū Bakr Aḥmad ibn ʿAlī al-Rāzī al-Jaṣṣāṣ) was a Hanafite scholar,[1][4] mostly known as the commentator of Al-Ḫaṣṣāf's work on Qādī (jurisprudence).
According to Tillier (2009:281), the original work and its commentary can now "hardly be separated: al-Khaṣṣāf's original text is included in al-Jaṣṣāṣ's commentary".
Al-Jaṣṣās is also the author of a work on tafsir, Aḥkām al-Qur'ān.
[5]