The Prophet (ﷺ) said, "A man utters a word pleasing to Allah without considering it of any significance for which Allah exalts his ranks (in Jannah); another one speaks a word displeasing to Allah without considering it of any importance, and for this reason he will sink down into Hell."
[Al-Bukhari, riyad as-salihin 1515, authenticated by shaykh Al-Albaanee]
