The Messenger of Allah ﷺ used to observe I'tikaf in the mosque and put his head near me through the opening of the apartment, and I would wash his head. Musaddad said: "And I would comb it while I was menstruating."
كَانَ رَسُولُ اللَّهِ ﷺ يَكُونُ مُعْتَكِفًا فِي الْمَسْجِدِ فَيُنَاوِلُنِي رَأْسَهُ مِنْ خَلَلِ الْحُجْرَةِ فَأَغْسِلُ رَأْسَهُ وَقَالَ مُسَدَّدٌ فَأُرَجِّلُهُ وَأَنَا حَائِضٌ
"The Messenger of Allah ﷺ used to put his head out of the Masjid while he was performing I'tikaf, and I would wash it, while I was menstruating."
أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يُخْرِجُ رَأْسَهُ مِنَ الْمَسْجِدِ وَهُوَ مُعْتَكِفٌ فَأَغْسِلُهُ وَأَنَا حَائِضٌ
"The Prophet ﷺ would put his head out for me while he was performing I'tikaf [1] and I would wash it, when I was menstruating." [1] Mujawir ("next door") here means while performing I'tikaf. (Using translation from Nasāʾī 276)
كَانَ رَسُولُ اللهِ ﷺ يَعْتَكِفُ فَيُخْرِجُ إِلَيَّ رَأْسَهُ مِنَ الْمَسْجِدِ فَأَغْسِلُهُ وَأَنَا حَائِضٌ
The Prophet ﷺ used to embrace me during my menses. He also used to put his head out of the mosque while he was in Iʿtikaf, and I would wash it during my menses. (Using translation from Bukhārī 2030)
كَانَ رَسُولُ اللهِ ﷺ «يُخْرِجُ رَأْسَهُ إِلَيَّ مِنَ الْمَسْجِدِ وَهُوَ مُعْتَكِفٌ فَيَأْمُرُنِي فَأَغْسِلُهُ وَأَنَا حَائِضٌ»
[Machine] "I used to lift the head of the Messenger of Allah ﷺ while he was in i'tikaf in the mosque, and he would enter his head through the doorway of the chamber, so I would lift it up."
«كُنْتُ أُرَجِّلُ رَأْسَ رَسُولِ اللهِ ﷺ وَهُوَ مُعْتَكِفٌ فِي الْمَسْجِدِ فَيُدْخِلُ رَأْسَهُ عَلَى عَتَبَةِ الْحُجْرَةِ فَأُرَجِّلُهُ»
"The Messenger of Allah ﷺ used to put his head out of the Masjid while he was performing I'tikaf, and I would wash it, while I was menstruating." (Using translation from Nasāʾī 388)
أَنَّ رَسُولَ اللهِ ﷺ كَانَ «يُخْرِجُ رَأْسَهُ مِنَ الْمَسْجِدِ وَهُوَ مُعْتَكِفٌ فَأَغْسِلُهُ وَأَنَا حَائِضٌ»