Abu Hurairah (May Allah be pleased with him) said:
The Messenger of Allah (ﷺ) said, "When a person says: 'People have been ruined, he is the one to be ruined the most."'[Muslim]In another version: "He himself is the most ruined among them." (RU)
App reference (RU): Book 18, Hadith 80 (RU)
Arabic/English book reference (RU): Book 18, Hadith 1590 (RU)