"Aishah said: 'Do you not know that the Messenger of Allah [SAW] said: It is not permissible to shed the blood of a Muslim, except a man who committed adultery after being married, or one who reverted to Kufr after becoming Muslim, or a life for a life.'"
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ يَحِلُّ دَمُ امْرِئٍ مُسْلِمٍ إِلاَّ رَجُلٌ زَنَى بَعْدَ إِحْصَانِهِ أَوْ كَفَرَ بَعْدَ إِسْلاَمِهِ أَوِ النَّفْسُ بِالنَّفْسِ وَقَّفَهُ زُهَيْرٌ
Why would they kill me? I heard the Messenger of Allah ﷺ say: ʿIt is not permissible (to shed) the blood of a Muslim except in three cases: If a man disbelieves after becoming Muslim, or commits zina after being married or kills someone and is executed in retaliation.ʿ
سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ لَا يَحِلُّ دَمُ امْرِئٍ مُسْلِمٍ إِلَّا بِإِحْدَى ثَلاثٍ رَجُلٌ كَفَرَ بَعْدَ إِسْلامِهِ أَوْ زَنَى بَعْدَ إِحْصَانِهِ أَوْ قَتَلَ نَفْسًا فَيُقْتَلُ بِهَا
"لَا يَحِلُّ دمُ امرئٍ مُسْلِمٍ إلا بِإِحْدَى ثَلاثٍ: رَجُلٌ كَفَرَ بَعْدَ إِسْلامٍ، أَوْ زَنى بَعْد إِحصَانٍ، أو قَتل نفسًا بغير نفسٍ فَيُقْتَلُ".