Jami` at-Tirmidhi 1928
جامع الترمذي#1928SahihAbu Musa Al-Ash'arf narrated that the Messenger of Allah said:: The believer is to the believer like parts of a building, each one of them supporting the other
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 27:34