Sahih al-Bukhari:Dress:Hadith 5707
حَدَّثَنَا آدَمُ، حَدَّثَنَا شُعْبَةُ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنِ امْرَأَتِهِ، فَاطِمَةَ عَنْ أَسْمَاءَ بِنْتِ أَبِي بَكْرٍ، قَالَتْ لَعَنَ النَّبِيُّ صلى الله عليه وسلم الْوَاصِلَةَ وَالْمُسْتَوْصِلَةَ‏.‏

(the daughter of Abu Bakr) Allah’s Messenger (ﷺ) has cursed such a lady as artificially lengthening (her or someone else’s) hair or gets her hair lengthened.

Narrator: Asma'
Chain of Narration (Isnad)

Hadith Grading

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Scholarly Consensus: Sahih