کتاب الفتن · نُعیم بن حماد

It has been narrated on the authority of Jabir b. Samura that the Prophet (ﷺ) said:This order will continue to be dominant until there have been twelve Caliphs. The narrator says: Then he said something which I could not understand, and I said to my father: What did he say? My father told me that he said that all of them (Caliphs) would be from the Quraish

O Amer bin Wathilah, twelve caliphs from Kaab bin Luay, then Al-Naqaf and Al-Naqaf, the affairs of the people will not be united over an imam until the Hour comes.

There will be twelve caliphs among you, Banu Ka'b

By Allah, after that, among us is the Assassin, the Mansour, and the Mahdi, who will hand it over to Jesus, son of Mary