H 316 - A group of scholars narrated to us from Abu Muhammad Harun from Muhammad Ibn Himam from Abdullah Ibn Ja’far that:

In a certain year, after the demise of Imam Hasan Askari , we performed Hajj. I went to Ahmad Ibn Ishaq at Baghdad and saw Abu Amr with him. I said: “This Shaykh,” pointing to Ahmad Ibn Ishaq, “and he is a trustworthy and admirable man before us, has narrated to us,” such and such. I narrated to him all of the narrative, which we mentioned above on the account of the eminent position of Abu Amr. I said: “You are now someone whose word and truthfulness is not dubitable. I beseech you for the sake of Allah and the sake of the two Imams who have declared you trustworthy, have you seen the son of Abu Muhammad, who is the Master of the Age?” He wept and then said: “You cannot inform anyone with this regard as long as I am alive.” I said: “Sure so.” He said: “I have verily seen him and his neck is like this.” He wanted to say that he has the most beautiful and wholesome of the necks. I asked, “And the name?” He said: “You have been forbidden from that.”