Sahih al-Bukhari Book 67, Hadith 153
The Prophet, said, "There is none having a greater sense of Ghira than Allah. And for that He has
forbidden the doing of evil actions (illegal sexual intercourse etc.) There is none who likes to be
praised more than Allah does."
Some lady said, "O Allah's Messenger (ﷺ)! My husband has another wife, so it is sinful of me to claim that he has given me what he has not given me (in order to tease her)?" Allah's Messenger (ﷺ) said, The one who pretends that he has been given what he has not been given, is just like the (false) one who wears two garments of falsehood."
Allah's Messenger (ﷺ) said, "O followers of Muhammad! There is none, who has a greater sense of Ghira (self-respect) than Allah, so He has forbidden that His slave commits illegal sexual intercourse or His slave girl commits illegal sexual intercourse. O followers of Muhammad! If you but knew what I know, you would laugh less and weep more!"