Sahih al-Bukhari 3491
Sahih al-Bukhari · Book 61: Virtues and Merits of the Prophet (pbuh) and his Companions · The Statement of Allah Ta'ala: "O mankind! We have created you from a male and female."
Narrated Kulaib bin Wail:
حَدَّثَنَا قَيْسُ بْنُ حَفْصٍ ، حَدَّثَنَا عَبْدُ الْوَاحِدِ ، حَدَّثَنَا كُلَيْبُ بْنُ وَائِلٍ ، قَالَ حَدَّثَتْنِي رَبِيبَةُ النَّبِيِّ، صلى الله عليه وسلم زَيْنَبُ ابْنَةُ أَبِي سَلَمَةَ قَالَ قُلْتُ لَهَا أَرَأَيْتِ النَّبِيَّ صلى الله عليه وسلم أَكَانَ مِنْ مُضَرَ قَالَتْ فَمِمَّنْ كَانَ إِلاَّ مِنْ مُضَرَ مِنْ بَنِي النَّضْرِ بْنِ كِنَانَةَ.
I asked Zainab bint Abi Salama (i.e. daughter of the wife of the Prophet, "Tell me about the Prophet (ﷺ) . Did he belong to the tribe of Mudar?" She replied, "Yes, he belonged to the tribe of Mudar and was from the offspring of An-Nadr bin Kinana."