Sayyiduna Jabir (may Allah be pleased with him) said: I heard the Prophet (peace and blessings be upon him) say: "There will be twelve amirs." Then he (peace and blessings be upon him) said something that I did not hear, and the people said that he (peace and blessings be upon him) had said: "All of them will be from Quraysh."
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 2031