It wasnarrated from Abu Bakrah that the Messenger of Allah (ﷺ)said:
"Modesty is part of faith, and faith will be in Paradise.Obscenityin speech is part of harshness and harshness will be inHell.'" (RU)
English reference (RU): Vol. 5, Book 37, Hadith 4184 (RU)
Arabic reference (RU): Book 37, Hadith 4324 (RU)