(14) باب حُكْمِ مَنْ فَرَّقَ أَمْرَ الْمُسْلِمِينَ وَهُوَ مُجْتَمِعٌ
It has been narrated on the authority of 'Arfaja who said:
I have heard the Messenger of Allah (ﷺ) say: Different evils will make their appearance in the near future. Anyone who tries to disrupt the affairs of this Umma while they are united you should strike him with the sword whoever he be. (If remonstrance does not prevail with him and he does not desist from his disruptive activities, he is to be killed.)
Reference: Sahih Muslim 1852 a
In-book reference: Book 33, Hadith 93
USC-MSA web (English) reference(deprecated numbering scheme): Book 20, Hadith 4565