(1) باب النَّاسُ تَبَعٌ لِقُرَيْشٍ وَالْخِلاَفَةُ فِي قُرَيْشٍ
It has been narrated on the authority of Jabir b. Samura who said:
I heard the Messenger of Allah (ﷺ) say: Islam will continue to be triumphant until there have been twelve Caliphs. Then the Prophet (ﷺ) said something which I could not understand. I asked my father: What did he say? He said: He has said that all of them (twelve Caliphs) will be from the Quraish.
Reference: Sahih Muslim 1821 d
In-book reference: Book 33, Hadith 8
USC-MSA web (English) reference(deprecated numbering scheme): Book 20, Hadith 4480