صحیح ابن حبان
Ibn Hibban
كتاب الطهارة
Book of Purification
باب أحكام الجنب - ذكر ما يستحب للمرء إذا كان جنبا وأراد النوم أن يتوضأ وضوءه للصلاة ثم ينام
Chapter on Rules for the Junub – Recommendation for a person in a state of major impurity who wants to sleep to perform ablution for prayer before sleeping
1 hadith
Hadith 1218
Sayyida Aisha Siddiqa (may Allah be pleased with her) narrates: When the Prophet Muhammad (peace be upon him) intended to sleep in a state of major ritual impurity (janabah), he would not sleep until he performed ablution (wudu). And when he intended to eat something in the state of janabah, he would wash both his hands before eating.