(145) بَابُ لَيْسَ الْمُؤْمِنُ بِالطَّعَّانِ
'Abdullah reported that the Prophet, may Allah bless him and granthim peace, said, "A believer is not a defamer nor a curser nor coarse norobscene." (ID)
Reference (ID): Al-Adab Al-Mufrad 312 (ID)
In-book reference (ID): Book 15, Hadith 4 (ID)
English translation (ID): Book 15, Hadith 312 (ID)