The Promised Deliverer (Kitab Al-Mahdi) hadith Sunan Abu-Dawud

Narrated Jabir ibn Samurah: The Prophet (peace_be_upon_him) said: The religion will continue to be established till there are twelve caliphs over you, and the whole community will agree on each of them. I then heard from the Prophet (peace_be_upon_him) some remarks which I could not understand. I asked my father: What is he saying: He said: all of them will belong to Quraysh.