Al-Mamun was astonished at the little gift his father gave...

Al-Mamun was astonished at the little gift his father gave to the Imam in spite of his magnifying and respecting him. He said to him: O Commander of the faithful, you gave five thousand dinars to the children of the Emigrants and of the Ansar, all Quraysh, the Banu Hashim, and those who had unknown lineage. You magnified and respected Musa b. Jafar; nevertheless, you gave to him two hundred dinars which was the meanest gift you gave to any of the people.

Harun became displeased with al-Mamun and shouted at him, saying: Silence! May you have no mother! If I gave this (Imam Musa) what I had promised, he…