It is narrated from Hazrat Jabir bin Samurah (may Allah be pleased with him) that I heard the Prophet (peace and blessings be upon him) saying during the Farewell Pilgrimage that this religion will always prevail over its opponents; no one who opposes or separates from it will be able to harm it, until twelve caliphs have passed among my Ummah. Then the Prophet (peace and blessings be upon him) said something which I did not understand. I asked my father, "What did the Prophet (peace and blessings be upon him) say?" He replied, "The Prophet (peace and blessings be upon him) said: All of them will be from the Quraysh."