The Chapters on Legal Punishments
20/2. Chapter:
The Apostates Who Leaves His Religion
Sunan Ibn Majah
حَدَّثَنَا مُحَمَّدُ بْنُ الصَّبَّاحِ، أَنْبَأَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنْ أَيُّوبَ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم (مَنْ بَدَّلَ دِينَهُ فَاقْتُلُوهُ ).
It was narrated from Ibn`Abbas that the Messenger of Allah (ﷺ) said: “Whoever changes his religion, execute him.”
Reference : Sunan Ibn Majah 2535In-book reference : Book 20, Hadith 3English translation : Vol. 3, Book 20, Hadith 2535