"I saw the Prophet , 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.'"
Sunan an-Nasa'i Book 37, Hadith 55
← Previous Hadith "We were with 'Uthman when he was under siege and we could hear what was said from Al-Balat. 'Uthman came in one day, then he came out, and said: 'They are threatening to kill me.' We said: 'Allah will suffice you against them.' He said: 'Why would they kill me? I heard the Messenger of Allah say: It is not permissible to shed the blood of a Muslim except in one of three cases: A man who reverts to Kufr after becoming Muslim, or commits adultery after being married, or one who kills a soul unlawfully. By Allah, I did not commit adultery during Jahiliyyah or in Islam, I never wished to follow any other religion since Allah guided me, and I have never killed anyone, so why do they want to kill me?'"

Sunan an-Nasa'i Book 37, Hadith 54 Next Hadith → "The Prophet when they are all united, kill him, no matter who he is among the people.'"

Sunan an-Nasa'i Book 37, Hadith 56