Hadith 3

Sahih Bukhari

Book 61: Virtues and Merits of the Prophet (pbuh) and his Companions

Chapter 1

The Statement of Allah Ta'ala: "O mankind! We have created you from a male and female."

بَابُ قَوْلُ اللَّهِ تَعَالَى: {يَا أَيُّهَا النَّاسُ إِنَّا خَلَقْنَاكُمْ مِنْ ذَكَرٍ وَأُنْثَى وَجَعَلْنَاكُمْ شُعُوبًا وَقَبَائِلَ لِتَعَارَفُوا إِنَّ أَكْرَمَكُمْ عِنْدَ اللَّهِ أَتْقَاكُمْ}

And Allah's Statement: "...And fear Allah through Whom you demand your mutual (rights), and (do not cut the relations of) the womb (kinship). Surely, Allah is Ever an All-Watcher over you." (V.4:1) The prohibition of bad customs of the Period of Ignorance.
وَقَوْلُهُ: {وَاتَّقُوا اللَّهَ الَّذِي تَسَاءَلُونَ بِهِ وَالأَرْحَامَ إِنَّ اللَّهَ كَانَ عَلَيْكُمْ رَقِيبًا}. وَمَا يُنْهَى عَنْ دَعْوَى الْجَاهِلِيَّةِ. الشُّعُوبُ النَّسَبُ الْبَعِيدُ، وَالْقَبَائِلُ دُونَ ذَلِكَ.
Sahih al-Bukhari 3491
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.‏
Kulaib bin Wail:

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."