(80) باب الْمُعْتَكِفِ يَدْخُلُ الْبَيْتَ لِحَاجَتِهِ
'Aishah said:
When the Messenger of Allah (ﷺ) observed I'tikaf, he would put his head near me, and I would comb it. and he entered the house only to fulfill human needs (i.e. to urinate or to relieve himself).
Reference: Sunan Abi Dawud 2467
In-book reference: Book 14, Hadith 155
English translation: Book 13, Hadith 2461