Everything in this book that is narrated from Muhammad ibn Abd Al-Jabbar has been transmitted by me from my father and from Muhammad ibn Al-Hasan - may Allah (swt) be pleased with them both - from Sad ibn Abdullah, Al-Himyari, Muhammad ibn Yahya Al-Attar, and Ahmad ibn Idris together, from Muhammad ibn Abd Al-Jabbar, who is Muhammad ibn Abi Al-Sahban.