Language:
كتاب الجنائز
23  
Funerals (Al-Janaa'iz)
(16)
Chapter: To entwine the head-hair of a (dead) woman in three braids
(16)
باب هَلْ يُجْعَلُ شَعَرُ الْمَرْأَةِ ثَلاَثَةَ قُرُونٍ
Sahih al-Bukhari 1262

Narrated Um 'Atiyya:

We entwined the hair of the dead daughter of the Prophet (ﷺ) into three braids. Waki said that Sufyan said, "One braid was entwined in front and the other two were entwined on the sides of the head."

حَدَّثَنَا قَبِيصَةُ، حَدَّثَنَا سُفْيَانُ، عَنْ هِشَامٍ، عَنْ أُمِّ الْهُذَيْلِ، عَنْ أُمِّ عَطِيَّةَ ـ رضى الله عنها ـ قَالَتْ ضَفَرْنَا شَعَرَ بِنْتِ النَّبِيِّ صلى الله عليه وسلم‏.‏ تَعْنِي ثَلاَثَةَ قُرُونٍ‏.‏ وَقَالَ وَكِيعٌ قَالَ سُفْيَانُ نَاصِيَتَهَا وَقَرْنَيْهَا‏.‏
Reference : Sahih al-Bukhari 1262
In-book reference : Book 23, Hadith 23
USC-MSA web (English) reference : Vol. 2, Book 23, Hadith 352
  (deprecated numbering scheme)