‘Abdallah ibn Ja’far ibn Ibrahim al-Ja’fari has said that ‘Abdallah ibn al-Mufaddal the slave of ‘Abdallah ibn Ja’far ibn abu Talib narrated the following. “When al-Husayn ibn Ali who was killed in al-Fakhkh, began his uprising he controlled the city of Madina and called Musa ibn Ja’far (a.s.) to pledge allegiance for him. When he was brought before him (al-Husayn he Musa ibn Ja’far (a.s.) ) said, “Son of my uncle, “Do not impose on what the son of your uncle imposed on your uncle abu ‘Abdallah (Ja’far ibn Muhammad (a.s.) ) and then you will experience from me what I do not want as it happened with abu ‘Abdallah (a.s.).” al-Husayn said to him, “I just proposed the matter to you if you like you may take part in it, if you would dislike it I will not impose on you, Allah is the supporter. He then said farewell to him. Abu al-Hassan, Musa ibn Ja’far (a.s.) said to him when saying farewell, “Son of my uncle, you will be killed, fight good. The people are transgressors. They call themselves believers but they hide in them atheism. We are for Allah and to Him we return. I leave request justice for you as my people from Allah.” Al-Husayn then went to fight. His case took shape the way it did. All of them were killed as the Imam (a.s.) had informed.”