From Sahih Bukhari (Hadith 6846):
Narrated Al-Mughira:Sa`d bin Ubada said, "If I found a man with my wife, I would kill him with the sharp side of my sword." When the Prophet (ﷺ) heard that he said, "Do you wonder at Sa`d's sense of ghira (self-respect)? Verily, I have more sense of ghira than Sa`d, and Allah has more sense of ghira than I
Reference: Bukhari 6846