I heard the Messenger of Allah ﷺ say: This religion will continue to be strong till the time of twelve caliphs. The people then uttered: Allah is more great and uproared. He then silently a word which I could not understand. So I said to my father: What did he say, father ? He said: All of them will belong to Quraish. (Using translation from Abū Dāʾūd 4280)
سَمِعْتُ النَّبِيَّ ﷺ يَقُولُ «لَا يَزَالُ هَذَا الدِّينُ عَزِيزًا مَنِيعًا إِلَى اثْنَيْ عَشَرَ خَلِيفَةً» فَقَالَ كَلِمَةً فَقُلْتُ لِأَبِي مَا قَالَ رَسُولُ اللهِ ﷺ؟ قَالَ «كُلُّهُمْ مِنْ قُرَيْشٍ»