Sahih
Muslim
صحيح مسلم
33
The Book on Government
كتاب الإمارة
Chapter 14: The ruling on one who seeks to divide the muslims when they are united
باب حُكْمِ مَنْ فَرَّقَ أَمْرَ الْمُسْلِمِينَ وَهُوَ مُجْتَمِعٌ
Sahih Muslim 1852 c
It has been narrated (through a still different chain of transmitters) on the Same authority (i. e. 'Arfaja) who said similarly-but adding
" Kill all of them." I heard the Messenger of Allah (ﷺ) say: When you are holding to one single man as your leader, you should kill who seeks to undermine your solidarity or disrupt your unity.وَحَدَّثَنِي عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا يُونُسُ بْنُ أَبِي يَعْفُورٍ، عَنْ أَبِيهِ، عَنْ عَرْفَجَةَ، قَالَ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ " مَنْ أَتَاكُمْ وَأَمْرُكُمْ جَمِيعٌ عَلَى رَجُلٍ وَاحِدٍ يُرِيدُ أَنْ يَشُقَّ عَصَاكُمْ أَوْ يُفَرِّقَ جَمَاعَتَكُمْ فَاقْتُلُوهُ " .
Grade: Sahih