The Book of Occultation — al-Ṭūsī · Hadith 406 (#Ḥadīth #7)

199- أبوهاشم الجعفري قال: قلت لابي محمد عليه السلام:جلالتك تمنعني عن مسألتك فتأذن لي في أن أسألك؟ قال: سل، قلت: يا سيدي هل لك ولد؟ قال: نعم، قلت: فإن حدث حدث فأين أسأل عنه؟ فقال: بالمدينة.

H 199 - It is narrated from Abu Hashim Ja’fari that he said: I said to Imam Hasan Askari , “Your majesty prohibits me from asking you, would you give me permission to inquire from you?” He said: “Ask.” I asked: “My master, do you have a son?” He said: “Yes.” I said: “If something happens, where should I inquire about him?” He said: “In Medina.”

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