Musa Jahni says that once I was present in the service of Fatimah bint Ali. My companion Abu Sahl asked her, "How old are you?" She replied, "Eighty-six years." Abu Sahl asked, "Have you heard any hadith from your father?" She said, "Asma bint Umais (may Allah be pleased with her) told me that the Prophet (peace and blessings of Allah be upon him) said to Ali (may Allah be pleased with him): 'Your relation to me is like the relation of Harun (Aaron) to Musa (Moses), except that there will be no prophet after me.'"