Riyad as-Salihin 1536
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] .
وعن حذيفة رضي الله عنه قال‏:‏ قال رسول الله صلى الله عليه وسلم ‏:‏ ‏
"‏لا يدخل الجنة نمام‏"‏ ‏(‏‏(‏متفق عليه‏)‏‏)‏‏.‏