(1) باب النَّاسُ تَبَعٌ لِقُرَيْشٍ وَالْخِلاَفَةُ فِي قُرَيْشٍ
It has been narrated on the authority of 'Abdullah that the Messenger of Allah (ﷺ) said:
The Caliphate will remain among the Quraish even if only two persons are left (on the earth), (ES)
Reference (ES): Sahih Muslim 1820 (ES)
In-book reference (ES): Book 33, Hadith 4 (ES)
USC-MSA web (English) reference(deprecated numbering scheme): Book 20, Hadith 4476 (ES)