Nahj al-Balāgha

Hadith 2069
angerbrotherhood
٤٨٠. وَقَالَ (عليه ‏السلام): إِذَا احْتَشَمَ الْمُؤْمِنُ أَخَاهُ فَقَدْ فَارَقَهُ.
480. Amīr al-mu’minīn, peace be upon him, said: If a believer enrages (iḥtashama) his brother, it means that he leaves him.
Source: al-Sharīf al-Raḍī