Clarification of the Transmission Chain to Al-Qasim Ibn Yahya

Everything in this book that is narrated from Al-Qasim ibn Yahya has been transmitted by me from my father and from Muhammad ibn Al-Hasan - may Allah (swt) be pleased with them both - from Sad ibn Abdullah and Al-Himyari together, from Ahmad ibn Muhammad ibn Isa and Ibrahim ibn Hashim together, from Al-Qasim ibn Yahya.