"I saw the Prophet [SAW] on the Minbar addressing the people. He said: 'After me there will be many calamities and much evil behavior. Whoever you see splitting away from the Jama'ah or trying to create division among the Ummah of Muhammad [SAW], then kill him, for the Hand of Allah is with the Jama'ah, and the Shaitan is with the one who splits away from the Ummah, running with him.'" (Using translation from Nasāʾī 4020)  

رَأَيْتُ النَّبِيَّ ﷺ وَهُوَ عَلَى الْمِنْبَرِ يَخْطُبُ النَّاسَ فَقَالَ «إِنَّهُ سَيَكُونُ بَعْدِي هَنَاتٌ وَهَنَاتٌ فَمَنْ رَأَيْتُمُوهُ فَارَقَ الْجَمَاعَةَ أَوْ يُرِيدُ أَنْ يُفَرِّقُ أَمْرَ أُمَّةِ مُحَمَّدٍ ﷺ كَائِنًا مَنْ كَانَ فَاقْتُلُوهُ فَإِنَّ يَدَ اللهِ عَلَى الْجَمَاعَةِ وَإِنَّ الشَّيْطَانَ مَعَ مَنْ فَارَقَ الْجَمَاعَةَ يَرْكُضُ»  

"The Prophet [SAW] said: 'After me there will be many calamities and much evil behavior.' He raised his hands (and said): 'Whomever you see trying to create division among the Ummah of Muhammad [SAW] when they are all united, kill him, no matter who he is among the people.'" (Using translation from Nasāʾī 4021)  

قَالَ النَّبِيُّ ﷺ «إِنَّهَا سَتَكُونُ بَعْدِي هَنَاتٌ وَهَنَاتٌ وَهَنَاتٌ وَرَفَعَ يَدَيْهِ فَمَنْ رَأَيْتُمُوهُ يُرِيدُ يُفَرِّقُ أُمَّةَ مُحَمَّدٍ ﷺ وَهِيَ جَمِيعٌ فَاقْتُلُوهُ كَائِنًا مَنْ كَانَ مِنَ النَّاسِ»  

various corruptions will arise in my community, so strike with sword the one who tries to cause separation in the matter of Muslims when they are united, whoever he be. (Using translation from Abū Dāʾūd 4762)   

سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ «إِنَّهَا سَتَكُونُ هَنَاتٌ وَهَنَاتٌ فَمَنْ أَرَادَ أَنْ يُفَرِّقَ أَمْرَ أُمَّةِ مُحَمَّدٍ ﷺ وَهُوَ جَمِيعٌ فَاضْرِبُوهُ بِالسَّيْفِ»  

"The Messenger of Allah [SAW] said: 'Any man who goes out and tries to create division among my Ummah, strike his neck (kill him).'" (Using translation from Nasāʾī 4023)   

قَالَ رَسُولُ اللهِ ﷺ «أَيُّمَا رَجُلٍ خَرَجَ يُفَرِّقُ بَيْنَ أُمَّتِي فَاضْرِبُوهُ بِالسَّيْفِ»