(6) باب قَتْلِ مَنْ فَارَقَ الْجَمَاعَةَ وَذِكْرِ الاِخْتِلاَفِ عَلَى زِيَادِ بْنِ عِلاَقَةَ عَنْ عَرْفَجَةَ فِيهِ
It was narrated that 'Arfajah said:
"I heard the Messenger of Allah [SAW] say: 'After me there will be many calamities and much evil behavior. Whoever wants to create division among the Ummah (of Muhammad [SAW]) when they are all united, strike him with the sword.'"
Reference: Sunan an-Nasa'i 4022
In-book reference: Book 37, Hadith 57
English translation: Vol. 5, Book 37, Hadith 4027