Messenger of Allah, tell me if a man finds his wife with another person, should he kill him? Messenger of Allah ﷺ said: No. Sa'd said: Why not? I swear by Him Who has honored you with the Truth. There upon Messenger of Allah ﷺ said: Listen to what your chief says.
يَا رَسُولَ اللَّهِ أَرَأَيْتَ الرَّجُلَ يَجِدُ مَعَ امْرَأَتِهِ رَجُلاً أَيَقْتُلُهُ قَالَ رَسُولُ اللَّهِ ﷺ لاَ قَالَ سَعْدٌ بَلَى وَالَّذِي أَكْرَمَكَ بِالْحَقِّ فَقَالَ رَسُولُ اللَّهِ ﷺ اسْمَعُوا إِلَى مَا يَقُولُ سَيِّدُكُمْ