Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) says: "The most blameworthy of a believer's traits is obscene speech."
Al-Tabarani recorded it with two chains, the narrators of one of which are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدب / 12956
Hadith Gradingمحدثین:اسناد صحیح
Hadith Takhrij«اخرجه الطبراني فى المعجم الكبير (8560 و 8561)»