"O Messenger of Allah! May any one of us sleep while he is Junub?" He said: "When he performs Wudu'."
Sunan an-Nasa'i Book 1, Hadith 260
← Previous Hadith "If the Messenger of Allah (ﷺ) wanted to sleep while he was Junub, he would perform Wudu' as for prayer before sleeping."

Sunan an-Nasa'i Book 1, Hadith 259 Next Hadith → "Umar mentioned to the Messenger of Allah (ﷺ) that he became Junub at night, and the Messenger of Allah (ﷺ) said: 'Perform Wudu' and wash you penis, then sleep.'"

Sunan an-Nasa'i Book 1, Hadith 261