Full Sharh — Mishkat al-Masabih 3177
وَعَنِ الْمُغِيرَةَ قَالَ: قَالَ سَعْدُ بْنُ عُبَادَةَ: لَوْ رَأَيْتُ رَجُلًا مَعَ امْرَأَتِي لَضَرَبْتُهُ بِالسَّيْفِ غَيْرَ مُصْفِحٍ فَبَلَغَ ذَلِكَ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَقَالَ: «أَتَعْجَبُونَ مِنْ غَيْرَةِ سَعْدٍ؟ وَاللَّهِ لَأَنَا أَغْيَرُ مِنْهُ وَاللَّهُ أَغْيَرُ مِنِّي وَمِنْ أَجْلِ غَيْرَةِ اللَّهِ حَرَّمَ اللَّهُ الْفَوَاحِشَ مَا ظَهَرَ مِنْهَا وَمَا بَطَنَ وَلَا أَحَدَ أَحَبُّ إِلَيْهِ الْعُذْرُ مِنَ اللَّهِ مِنْ أَجْلِ ذَلِكَ بَعَثَ الْمُنْذِرِينَ وَالْمُبَشِّرِينَ وَلَا أَحَدَ أَحَبُّ إِلَيْهِ الْمِدْحَةُ مِنَ اللَّهِ وَمِنْ أَجْلِ ذَلِكَ وَعَدَ اللَّهُ الْجَنَّةَ»
English Translation
Al-Mughira told that Sa'd b 'Ubada said, “If I saw a man with my wife I would strike him with the sword, and not with the flat of it.” When God’s Messenger heard of that he said, “Are you surprised at Sa'd’s jealousy? I swear by God that I am more jealous than he is and that God is more jealous than I am. Because of God’s jealousy He has prohibited abominations both open and secret. No one is fonder of receiving an excuse than God, on which account He has sent warners and announcers of good news; and no one is fonder of praise than God, on which account God has promised paradise.” (Bukhari and Muslim.)
Source
Mishkat al-Masabih(مشكاة المصابيح)
Marriage
Hadith Number
3177