The Book on Government (Kitab Al-Imara)

Muslim :: Book 20 : Hadith 4481

It has been narrated on the authority of Jabir b. Samura that the Holy Prophet (may peace be upon him) 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.