Takfir: Its Dangers & Rules

Takfir - accusing a fellow Muslim of apostasy; of having left the fold of Islam and being a disbeliever (kafir) - is indeed a grave affair in Islam. It is a fitnah, or "sedition," whose flames were historically put out by the defeat of the Kharijites (khawarij), only to be set alight again in our times, on a global scale,…