al-Ḥath ʻalá al-tijārah wa-al-ṣināʻah wa-al-ʻamal, wa-al-inkār ʻalá man yaddaʻī al-tawakkul fī tark al-ʻamal wa-al-ḥujjah ʻalyhum fī dhālika - Khallāl, Aḥmad ibn Muḥammad, ?-923 (Maktabat al-Quds, 1929)