Clarification of the Transmission Chain to Muhammad Ibn Isa

Everything in this book that is narrated from Muhammad ibn Isa has been transmitted by me from my father - may Allah (swt) be pleased with him - from Sad ibn Abdullah, from Muhammad ibn Isa ibn Ubayd Al-Yaqtini. I have also narrated it from Muhammad ibn Al-Hasan - may Allah (swt) be pleased with him - from Muhammad ibn Al-Hasan Al-Saffar, from Muhammad ibn Isa ibn Ubayd Al-Yaqtini.