Sahih al-Bukhari 1260
Sahih al-Bukhari · Book 23: Funerals (Al-Janaa'iz) · To undo the hair of a (dead) female
Narrated Hafsa bint Seereen:
حَدَّثَنَا أَحْمَدُ ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ وَهْبٍ ، أَخْبَرَنَا ابْنُ جُرَيْجٍ ، قَالَ أَيُّوبُ وَسَمِعْتُ حَفْصَةَ بِنْتَ سِيرِينَ ، قَالَتْ حَدَّثَتْنَا أُمُّ عَطِيَّةَ ـ رضى الله عنها ـ أَنَّهُنَّ جَعَلْنَ رَأْسَ بِنْتِ رَسُولِ اللَّهِ صلى الله عليه وسلم ثَلاَثَةَ قُرُونٍ نَقَضْنَهُ ثُمَّ غَسَلْنَهُ ثُمَّ جَعَلْنَهُ ثَلاَثَةَ قُرُونٍ.
Um 'Atiyya said that they had entwined the hair of the daughter of Allah's Messenger (ﷺ) in three braids. They first undid her hair, washed and then entwined it in three braids."