When the Messenger of Allah (ﷺ) was in I'tikaf, he inclined his head towards me and I combedhis hair, and he did not enter the house but for the natural calls (for relieving himself).
Sahih Muslim Book 3, Hadith 6
← Previous Hadith While I was lying with the Messenger of Allah (ﷺ) in a bed cover I menstruated, so I slipped away and I took up the clothes (which I wore) in menses. Upon this the Messenger of Allah (ﷺ) said: Have you menstruated? I said: Yes. He called me and I lay down

Sahih Muslim Book 3, Hadith 5 Next Hadith → 'A'isha, wife of the Messenger of Allah (ﷺ) observed: When I was (in I'tikaf), I entered the house for the call of nature, and while passing I inquired after the health of the sick (in the. family), and when the Messenger of Allah (ﷺ) was (in I'tikaf), he put out his head towards me, while he himself was in the mosque, and I combed his hair; and he did not enter the house except for the call of nature so long as he was In I'tikaf; and Ibn Rumh stated: As long as they (the Prophet and his wives) were among the observers of I'tikaf.

Sahih Muslim Book 3, Hadith 7