Everything in this book that is narrated from Abdullah ibn Abi Ya'fur has been transmitted by me from Ahmad ibn Muhammad ibn Yahya Al-Attar - may Allah (swt) be pleased with him - from Sa'd ibn Abdullah, from Ahmad ibn Abi Abdullah Al-Barqi, from his father, from Muhammad ibn Abi Umayr, from Hammad ibn Uthman, from Abdullah ibn Abi Ya'fur.