that the Messenger of Allah said: “When anyone of you has intercourse with his wife, let him cover himself and not be naked liked donkeys.”
Sunan Ibn Majah Book 9, Hadith 77
← Previous Hadith “I said: 'O Messenger of Allah, with regard to our 'Awrah, what may we uncover of it and what must we conceal?' He said: 'Cover your 'Awrah, except from your wife and those whom your right hand possesses.' I said: 'O Messenger of Allah, what if the people live close together?' He said: 'If you can make sure that no one sees it, then do not let anyone see it.' I said: 'O Messenger of Allah, what if one of us is alone?' He said: 'Allah is more deserving that you should feel shy before Him than People.' ”

Sunan Ibn Majah Book 9, Hadith 76 Next Hadith → “I never looked at or I never saw the private part of the Messenger of Allah.' ”

Sunan Ibn Majah Book 9, Hadith 78