Sahih al-Bukhari, Book 33, Hadith 21 (In-Book) ⓘ
Narrated `Urwa: Aisha during her menses used to comb and oil the hair of the Prophet while he used to be in I`tikaf in the mosque. He would stretch out his head towards her while she was in her chamber.
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ، حَدَّثَنَا هِشَامٌ، أَخْبَرَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ ـ رضى الله عنها ـ أَنَّهَا كَانَتْ تُرَجِّلُ النَّبِيَّ صلى الله عليه وسلم وَهِيَ حَائِضٌ وَهْوَ مُعْتَكِفٌ فِي الْمَسْجِدِ وَهْىَ فِي حُجْرَتِهَا، يُنَاوِلُهَا رَأْسَهُ.
also referenced under: Hadith 2046 (DarusSalam) & Volume 3, Book 33, Hadith 262 (USC-MSA)