It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him), who reports from the Prophet (peace and blessings be upon him) that he said: "A believer is not one who curses excessively, is immoral, or uses obscene language."
Hadith Referenceالادب المفرد / كتاب / 332
Hadith Gradingالألبانی:صحيح
Hadith Takhrij«صحيح : جامع الترمذي ، البر و الصلة ، ح : 1977»
Explanation & Benefits
Shaykh Maulana Usman Muneeb
Benefits and Issues: See the benefits of Hadith: 312.
Source: Fadlullah al-Ahad: Urdu Commentary on al-Adab al-Mufrad, Page: 332