Abu Sa'id al-Khudri · Hot Baths (Kitab Al-Hammam)

I said: Messenger of Allah, from whom should we conceal our private parts and to whom can we show? He replied: conceal your private parts except from your wife and from whom your right hands possess (slave-girls). I then asked: Messenger of Allah, (what should we do), if the people are assembled together? He replied: If it is within your power that no one looks at it, then no one should look at it. I then asked: Messenger of Allah…

The Prophet (ﷺ) said: A man should not lie with another man and a woman should not lie with another woman without covering their private parts except a child or a father. He also mentioned a third thing which I forgot.