The Khawarij sect emerged as a result of the Battle of Siffin (657 CE).
It was fought between the forces of Caliph Hazrat Ali and those of Muawiyah ibn Abu Sufyan.
The meaning of Khawarij is "rebels."
The battle ended in a stalemate, and the arbitration process that followed led to a group of rebels, who would later become known as the Khawarij, to break away from Hazrat Ali's camp.
