Bahz b. Hakim, on his father’s authority, told that his grandfather reported God’s Messenger as saying, "Cover your private parts, except from your wife or your female slave,” and said he asked him to tell him what a man might do when alone. He replied, "God has most right to modesty from you.”
I was with God’s Messenger along with Maimuna when Ibn Umm Maktum approached and came in to visit him, so he told us to veil ourselves. I said, "Messenger of God, is he not blind and unable to see us?” He replied, "Are you blind and unable to see him?”
Ibn ‘Umar reported God’s Messenger as saying, "Avoid being naked, for with you are those who never leave you (the recording angels) except when you are relieving yourselves and when a man has intercourse with his wife; so observe modesty before them and honour them.”
