Everything in this book that is narrated from Muhammad ibn Abi 'Umayr has been transmitted by me from my father and from Muhammad ibn Al-Hasan - may Allah (swt) be pleased with them both - from Sa'd ibn Abdullah and Al-Himyari together, from Ayyub ibn Nuh, Ibrahim ibn Hashim, Ya'qub ibn Yazid, and Muhammad ibn Abdul Jabbar, all from Muhammad ibn Abi 'Umayr.