The Messenger of Allah ﷺ said, "The believer is not given to cursing, nor to slandering, nor to obscenity, nor to vulgar speech."
قال رسول الله ﷺ: إن المؤمن ليس باللعان ولا الطعان ولا الفاحش ولا البذيء.
Ahmad (3948), Bukhari in Adab al-Mufrad (312), Ibn Hibban who graded it sahih (192), and Hakim (1/12) all narrated it through various routes from Abu Bakr bin Ayyash, from Hasan bin Amr Fuqaymi, from Muhammad bin Abdul-Rahman bin Yazid, from his father, from Abdullah, who said, then he mentioned it.Its chain is hasan because of Abu Bakr bin Ayyash, for his hadith is hasan.