(1) باب النَّاسُ تَبَعٌ لِقُرَيْشٍ وَالْخِلاَفَةُ فِي قُرَيْشٍ
It has been narrated on the authority of Jabir b. Samura that the Prophet (ﷺ) 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.
Reference: Sahih Muslim 1821 e
In-book reference: Book 33, Hadith 9
USC-MSA web (English) reference(deprecated numbering scheme): Book 20, Hadith 4481