Retiring to a Mosque for Remembrance of Allah (I'tikaf)
33/19. Chapter:
A Mu'takif can let his head in the house for washing
Sahih Bukhari
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.
Narrated `Urwa: Aisha during her menses used to comb and oil the hair of the Prophet (ﷺ) 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.
Reference : Sahih al-Bukhari 2046In-book reference : Book 33, Hadith 21USC-MSA web (English) reference : Vol. 3, Book 33, Hadith 262