Sahih al-Bukhari, Hadith 7222 ⓘ
Narrated Jabir bin Samura: I heard the Prophet saying, "There will be twelve Muslim rulers (who will rule all the Islamic world)." He then said a sentence which I did not hear. My father said, "All of them (those rulers) will be from Quraish."
حَدَّثَنِي مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا غُنْدَرٌ، حَدَّثَنَا شُعْبَةُ، عَنْ عَبْدِ الْمَلِكِ، سَمِعْتُ جَابِرَ بْنَ سَمُرَةَ، قَالَ سَمِعْتُ النَّبِيَّ صلى الله عليه وسلم يَقُولُ " يَكُونُ اثْنَا عَشَرَ أَمِيرًا ـ فَقَالَ كَلِمَةً لَمْ أَسْمَعْهَا فَقَالَ أَبِي إِنَّهُ قَالَ ـ كُلُّهُمْ مِنْ قُرَيْشٍ " .
also referenced under: Book 93, Hadith 82 (In-Book) & Volume 9, Book 89, Hadith 329 (USC-MSA)