يعقوب بن داود

Muhammad ibn Ja’far went to see Harun Ar-Rashid and greeted him as the Caliph. He then told him, ‘I did not think that there were two Caliphs on the Earth until I saw that they greet my brother Musa ibn Ja’far as the Caliph.’”One of the people who said bad things behind Musa ibn Ja’far’s (s) back was Yaqoob ibn Dawood. He was one of the Zaydites.

Yaqoob ibn Dawood told me that he adheres to the Divine Leadership.”Ibrahim ibn Abil Bilad added, “On the night before Musa ibn Ja’far (s) was arrested, I went to see Yaqoob ibn Dawood in Medina. Yaqoob told me, ‘I was with the Vizier - that is Yahya ibn Khalid - now. He told me that he had heard Ar-Rashid address God’s Prophet (s) near the Prophet’s (s) shrine and say, ‘O Prophet of God! May my father and mother be your ransom! Please forgive me for the decision which I have made - that is to arrest and imprison Musa ibn Ja’far since I am afraid that he will cause a war in your nation in which there will be bloodshed. I think Harun Ar-Rashid will arrest the Imam (s) in the morning.’”The narrator of this tradition added, “The following morning Al-Fadhl ibn al-Rabiee’ was sent to him. The Imam (s) was standing in the Station of God’s Prophet (s) and was praying. Al-Fadhl ibn al-Rabee’ ordered that he (s) be arrested and imprisoned.”