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]. (ID)
App reference (ID): Book 18, Hadith 26 (ID)
Arabic/English book reference (ID): Book 18, Hadith 1536 (ID)