Clarification of the Transmission Chain to Abu Al-Hasan Al-Nahdi

And whatever is narrated from Abu Al-Hasan Al-Nahdi, I have narrated it from my father - may Allah سبحانه وتعالى be pleased with him - from Sad ibn Abdullah, from Ahmad ibn Muhammad ibn Isa, from Al-Hasan ibn Ali Al-Washsha', from Abu Al-Hasan Al-Nahdi.