The Book of Occultation — al-Ṭūsī · Hadith 73 (#Ḥadīth #7)

14- عنه، عن أحمد بن مهران، عن محمد بن علي، عن زياد بن مروان القندي- (وكان من الواقفة) قال: دخلت على أبي إبراهيم عليه السلام وعنده أبو الحسن إبنه فقال لي:يا زياد هذا إبنى علي، أن كتابه كتابي، وكلامه كلامي، ورسوله رسولي، وما قال فالقول قوله.

H 14 - It is narrated from Ahmad bin Mehran from Muhammad bin Ali from Ziyad bin Marwan Qandi, who was from the Waqifiya sect that he said: I visited Abu Ibrahim [Imam Kadhim ]. With him was Abul Hasan [Ali Ridha ], his son. Imam said: Ziyad, this is my son, Ali. His writing is my writing, his words are my words, his messenger is my messenger, and whatever he says, (the truth) is what he says.

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).