The Criterion for Describing One Who Rebels Against the Imam as a Khariji

Question:
The questioner says: Is everyone who rebels against the imam called a Khariji? Or is it necessary that he also holds the beliefs of the Khawarij, such as declaring the one who commits a major sin a disbeliever, and that he will remain in the Fire forever, and so on?

Answer:
The Khawarij have certain characteristics, among which is rebelling against the one in authority, and declaring someone a disbeliever for committing a major sin. Declaring someone a disbeliever for a major sin is the root of their position. They did not rebel against the one in authority except because they declared him a disbeliever; they declared him a disbeliever for fighting over a major sin. So the root is that they declare people disbelievers for committing major sins that are less than shirk (associating partners with Allah). Branching from this is their rebellion against the one in authority, and branching from this is their treating the blood of the Muslim community as lawful. All of this follows from the fact that they declare people disbelievers for major sins.
This is their school of thought, and the cause of their misguidance is declaring people disbelievers based on lies. We ask Allah for safety from that. The honorable questioner asks. We inform, we inform. Whoever possesses any of these characteristics of theirs is one of them. The one who rebels against the one in authority is one of the Khawarij. The one who declares someone a disbeliever for a major sin is one of the Khawarij. The one who treats the blood of Muslims as lawful is one of the Khawarij. The one who combines these three matters is the most severe type of Khariji. Yes.

The presenter:
Yes. May Allah reward you