Clarification of the Transmission Chain to Umar Ibn Yazid

Everything in this book that is narrated from Umar ibn Yazid has been transmitted by me from my father - may Allah (swt) be pleased with him - from Muhammad ibn Yahya Al-Attar, from Yaqub ibn Yazid, from Muhammad ibn Abi Umayr and Safwan ibn Yahya, from Umar ibn Yazid. I have also narrated it from my father - may Allah (swt) be pleased with him - from Abdullah ibn Jafar Al-Himyari, from Muhammad ibn Abdul Hamid, from Muhammad ibn Umar ibn Yazid, from Al-Husayn ibn Umar ibn Yazid, from his father Umar ibn Yazid. Additionally, I have narrated it from my father - may Allah (swt) have mercy on him - from Abdullah ibn Jafar Al-Himyari, from Muhammad ibn Abdul Jabbar, from Muhammad ibn Ismail, from Muhammad ibn Abbas, from Umar ibn Yazid.