According to the Koran, a Muslim is anyone who bears witness that “there is no God (Allah) but Allah, and that Muhammad is his Rasul (Messenger).” If no other qualification is added, then all those who subscribe to these precepts must be regarded as Muslims.
古兰经说，穆斯林是所有信奉“安拉是唯一真神，穆罕默德是他的使者”的人。如果不添加其他条件，那么所有赞同这些训律的人都必须被当作穆斯林。但是我们穆斯林喜欢从古兰经以外的地方推导出新的条件，结果我们的宗教的统一性被破坏了。