Everything in this book that is narrated from Yahya ibn Abi Al-Ala has been transmitted by me from Muhammad ibn Al-Hasan - may Allah (swt) be pleased with him - from Al-Husayn ibn Al-Hasan ibn Aban, from Al-Husayn ibn Said, from Faddalah ibn Ayyub, from Aban ibn Uthman, from Yahya ibn Abi Al-Ala.