ذِكْرُ الْبَيَانِ بِأَنَّ زِنَى الْمَرْءِ بِحَلِيلَةِ جَارِهِ مِنْ أَعْظَمِ الذُّنُوبِ
‘Abd Allaah (bin Masud) said “I asked Apostle of Allaah ﷺ which sin is the gravest?” He replied “That you associate someone with Allaah, while He has created you”. I again asked “Which then?” He replied “That you commit adultery with the wife of your neighbor.” Allaah then revealed the following Qur’anic verse in support of the statement of the Prophet ﷺ “Those who invoke not with Allaah any other god nor slay such life as Allaah has made sacred except for just cause nor commit fornication.” (Using translation from Abū Dāʾūd 2310)
قُلْتُ يَا رَسُولَ اللَّهِ أَيُّ الذَّنْبِ أَعْظَمُ؟ قَالَ «أَنْ تَجْعَلَ لِلَّهِ نِدًّا وَهُوَ خَلَقَكَ» قُلْتُ ثُمَّ أَيُّ؟ قَالَ «أَنْ تَقْتُلَ وَلَدَكَ مَخَافَةَ أَنْ يَأْكُلَ مَعَكَ» قُلْتُ ثُمَّ أَيُّ؟ قَالَ «أَنْ تَزْنِيَ بِحَلِيلَةِ جَارِكَ» فَأَنْزَلَ اللَّهُ تَصْدِيقَ قَوْلِ رَسُولِ اللَّهِ ﷺ {وَالَّذِينَ لَا يَدْعُونَ مَعَ اللَّهِ إِلَهًا آخَرَ وَلَا يَقْتُلُونَ النَّفْسَ الَّتِي حَرَّمَ اللَّهُ إِلَّا بِالْحَقِّ وَلَا يَزْنُونَ}