Sahih Muslim 2122
Sahih Muslim · Book 37: The Book of Clothes and Adornment · The Prohibition Adding Hair Extensions, Having Them Added, Tattooing, Being Tattooed, An-Namisah, Al-Mutanamisah, Separating Teeth, And Changing The Creation Of Allah
Asma', daughter of Abu Bakr, reported that a woman came to Allah's Apostle (ﷺ) and said:
وَحَدَّثَنِي أَحْمَدُ بْنُ سَعِيدٍ الدَّارِمِيُّ ، أَخْبَرَنَا حَبَّانُ ، حَدَّثَنَا وُهَيْبٌ ، حَدَّثَنَا مَنْصُورٌ ، عَنْ أُمِّهِ ، عَنْ أَسْمَاءَ بِنْتِ أَبِي بَكْرٍ ، أَنَّ امْرَأَةً، أَتَتِ النَّبِيَّ صلى الله عليه وسلم فَقَالَتْ إِنِّي زَوَّجْتُ ابْنَتِي فَتَمَرَّقَ شَعْرُ رَأْسِهَا وَزَوْجُهَا يَسْتَحْسِنُهَا أَفَأَصِلُ يَا رَسُولَ اللَّهِ فَنَهَاهَا .
I have married my daughter (whose) hair of head have fallen. Her spouse likes them (the long hair). Allah's Messenger (may add false hair to her head? He forbade her to do this.