Sayyiduna Muawiyah bin Haydah (may Allah be pleased with him) says: I asked, "O Messenger of Allah! From whom among our private parts (i.e., the areas that must be covered) can we see, and from whom can we not see?" The Prophet (peace and blessings be upon him) said: "Protect your private parts from everyone except your wife and your slave woman." Muawiyah says: I asked, "O Messenger of Allah! What if people are together with each other?" He said: "If you are able that no one sees (your private parts), then let no one see them." Muawiyah says: I asked, "What if a man is alone?" He replied: "Allah has more right that one should feel shy before Him." According to one narration (to clarify the matter), the Noble Prophet (peace and blessings be upon him) raised his hand and placed it on his private part.