he asked the Prophet: "Can one of us sleep while he is Junub?" So he replied: "Yes, when he performs Wudu."
Jami` at-Tirmidhi Book 1, Hadith 120
← Previous Hadith There is a similar report (as no. 1I8) narrated via Abu Ishaq.

Jami` at-Tirmidhi Book 1, Hadith 119 Next Hadith → the Prophet met him while he was Junub. He said: " I withdrew - to perform Ghusl. Then he returned, so he said: 'Where have you been?' Or: 'Where did you go?' I replied: 'I was Junub.' So he said: 'Indeed the believer is not defiled.'''

Jami` at-Tirmidhi Book 1, Hadith 121