Punishment of Disbelievers at War with Allah and His Apostle

Bukhari :: Book 8 :: Volume 82 :: Hadith 829

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 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."