Narrated by:'Abdullah that the Messenger of Allah said
It was narrated from 'Abdullah that the Messenger of Allah said:"It is not permissible to shed the blood of a Muslim except in one of three cases: A soul for a soul, a adulterer who has been married, and one who separates leaving his religion."
أَخْبَرَنَا بِشْرُ بْنُ خَالِدٍ، قَالَ حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، عَنْ شُعْبَةَ، عَنْ سُلَيْمَانَ، قَالَ سَمِعْتُ عَبْدَ اللَّهِ بْنَ مُرَّةَ، عَنْ مَسْرُوقٍ، عَنْ عَبْدِ اللَّهِ، عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم قَالَ " لاَ يَحِلُّ دَمُ امْرِئٍ مُسْلِمٍ إِلاَّ بِإِحْدَى ثَلاَثٍ النَّفْسُ بِالنَّفْسِ وَالثَّيِّبُ الزَّانِي وَالتَّارِكُ دِينَهُ الْمُفَارِقُ " .
Nesai
The Book of Oaths (qasamah), Retaliation and Blood Money • Hadith 4721