(47) باب ذِكْرِ الْخَوَارِجِ وَصِفَاتِهِمْ
It was narrated from Abu Sa'eed Al-Khudri that the Messenger of Allah (ﷺ) said:
"A group will secede at a time of division among the people, and they will be killed by the group that is closer to the truth."
Reference: Sahih Muslim 1065 d
In-book reference: Book 12, Hadith 197
USC-MSA web (English) reference(deprecated numbering scheme): Book 5, Hadith 2326