Sayyidah Aisha Siddiqa (may Allah be pleased with her) narrates: The Prophet Muhammad (peace be upon him) would sometimes extend his head towards me while he was observing i'tikaf in the mosque, and I would comb his hair. The Prophet Muhammad (peace be upon him) would come home (only) to fulfill the need of relieving himself.
Hadith Referenceصحیح ابن حبان / كتاب الصوم / 3669
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح - «صحيح أبي داود» (2131): ق.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح على شرط الشيخين