Clarification of the Transmission Chain to Ubaydullah Ibn Ali Al-Halabi

Everything in this book that is narrated from Ubaydullah ibn Ali Al-Halabi 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 Ahmad and Abdullah, the sons of Muhammad ibn 'Isa, from Muhammad ibn Abi 'Umayr, from Hammad ibn 'Uthman, from Ubaydullah ibn Ali Al-Halabi. I have also narrated it from my father, from Muhammad ibn Al-Hasan, and from Ja'far ibn Muhammad ibn Masrur - may Allah (swt) be pleased with them all - from Al-Husayn ibn Muhammad ibn 'Amir, from his uncle Abdullah ibn 'Amir, from Muhammad ibn Abi 'Umayr, from Hammad ibn 'Uthman, from Ubaydullah ibn Ali Al-Halabi.