Hudhaifah (May Allah be pleased with him) said:
The Messenger of Allah (ﷺ) said, "The person who goes about with calumnies will never enter Jannah."[Al-Bukhari and Muslim]. (ES)
App reference (ES): Book 18, Hadith 26 (ES)
Arabic/English book reference (ES): Book 18, Hadith 1536 (ES)