Clarification of the Transmission Chain to Umar Ibn Abi Ziyad

Everything in this book that is narrated from Umar ibn Abi Ziyad has been transmitted by me from my father - may Allah سبحانه وتعالى be pleased with him - from Sa'd ibn Abdullah, from Muhammad ibn Al-Husayn ibn Abi Al-Khattab, from Al-Hakam ibn Miskin, from Umar ibn Abi Ziyad.