Stay away from any person or group that would use violence in order to hurt other members of their faith.

The hadith of 'Abdullah bin 'Umar warns Muslims against those who bear arms against the Muslim community. This hadith emphasizes that anyone who takes up weapons to fight or harm other Muslims is not a part of the Muslim community and should be avoided. It is important for all Muslims to remember this warning and to stay away from any person or group that would use violence in order to hurt other members of their faith. This hadith also serves as a reminder that peace and unity are essential values within Islam, and any action taken which goes against these values should be avoided at all costs.