What is most significant in this narrative is the Imam's...
What is most significant in this narrative is the Imam's initiation of the dialogue with Mansour to tell him about his successor, then his ordering him to enter his son's room to congratulate him and to tell him that he was doing so because his father ordered him to.
What the Imam wanted to accomplish by doing all of that was to make a practical point for the record against Mansour by making him recognize the Imamate of his son after him in a way which does not permit him at all to preach Waqfism except if he reneged as actually happened after that. Imam Musa Ibn Ja’far (a.s.) Warns the Waqfis There is another stance for the Imam which is not without an exciting moment involving one of the main advocates of Waqfism.
His stance was like a clear warning to those who created the controversy of this "sect" and promoted it; al-Bataini states: "I said to Abul-Hasan, `Your father had informed us of his successor, and we wish…