Hadith 5981

وَعَنِ ابْنِ عُمَرَ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «لَا يَزَالُ هَذَا الْأَمْرُ فِي قُرَيْشٍ مَا بَقِيَ مِنْهُمُ اثْنَان» . مُتَّفق عَلَيْهِ
Ibn `Umar reported the Prophet as saying, "This matter will continue in Quraish as long as two of them remain[*]. *Mirqat, 5:508, explains this as meaning that the Caliphate will remain the prerogative of Quraish as long as two human beings survive. (Bukhari and Muslim.)
Hadith Reference Mishkat al-Masabih / The Book of Merits / Hadith: 5981
Hadith Grading الألبانی: مُتَّفَقٌ عَلَيْهِ  |  زبیر علی زئی: متفق عليه
Hadith Takhrij ´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «متفق عليه، رواه البخاري (3501) و مسلم (4/ 1820)»