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.”