Larification of the Transmission Chain to rifa'ah Ibn Musa Al-Nakhkhas

Everything in this book that is narrated from Rifa'ah ibn Musa Al-Nakhkhas has been transmitted by me from my father - may Allah سبحانه وتعالى be pleased with him - from Sa'd ibn Abdullah, from Ya'qub ibn Yazid, from Muhammad ibn Abi 'Umayr, from Rifa'ah ibn Musa Al-Nakhkhas.