Jami` at-Tirmidhi 2508
جامع الترمذي#2508HasanAbu 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
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirHasan
Al-AlbaniHasan
Zubair Ali ZaiIsnaad Hasan
In-book reference: 37:94