Applying the term Khawarij to the terrorists

Question:
The questioner asks: Is it correct to apply the term Khawarij to these people who commit acts of terrorism? What should we say to those who hesitate to apply the title of Khawarij to them? And are the Muslim Brotherhood and their leaders of the same type as these people?

Answer:
The original source of this group is the Khawarij, but their evil has increased; they have gone beyond what the Khawarij did. The Khawarij did not demolish houses or blow up residences and shops; they did not commit these acts or this treachery. The Khawarij used to strike in battles and fight; they did not attack the homes of safe people or terrorize women and children. They are worse than the Khawarij. Their origin is from the Khawarij, but they added to them, so they are most like what people call the Qarmatians and secret organizations. However, the root of their idea is the idea of the Khawarij, but their matter developed until they added to what the Khawarij did, so they are worse than them.
It is not permissible to hesitate to apply the term Khawarij to them, because they are Khawarij in reality and in origin. In fact, they are even more so, as we mentioned.