´It was narrated that 'Aishah said:` "If the Messenger of Allah (ﷺ) wanted to sleep while he was Junub, he would perform Wudu' as for prayer before sleeping."
Hadith Referenceسنن نسائي / ذكر ما يوجب الغسل وما لا يوجبه / 259
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح مسلم
´It was narrated from 'Abdullah bin 'Umar that 'Umar said:` "O Messenger of Allah! May any one of us sleep while he is Junub?" He said: "When he performs Wudu'."
Hadith Referenceسنن نسائي / ذكر ما يوجب الغسل وما لا يوجبه / 260
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه