Abu Hurairah (May Allah be pleased with him) said:
The Messenger of Allah (ﷺ) said, "It is enough evil for a Muslim to look down upon his (Muslim) brother."[Muslim]. (RU)
App reference (RU): Book 18, Hadith 64 (RU)
Arabic/English book reference (RU): Book 18, Hadith 1574 (RU)