Abu Hurairah narrated that the Prophet (s.a.w) said:"Beware of evil with each other, for indeed it is the Haliqah." [The meaning of his saying]: "Süw'a Dhãt Al-Bain (evil with each other) is enmity and hatred, and his saying: "The Haliqah" [it is said] that it severs the religion

English translation · Jami' at-Tirmidhi