(217) بَابُ الرِّفْقِ
Abu'd-Darda' reported that the Prophet, may Allah bless him andgrant him peace, said, "Whoever has been given his portion of compassionhas been given his portion of good. Whoever is denied given his portionof compassion has been denied his portion of good. Good character willbe the weightiest thing in the believer's balance on the Day of Rising.Allah hates a coarse, foul-mouthed person."
Reference: Al-Adab Al-Mufrad 464
In-book reference: Book 26, Hadith 3
English translation: Book 26, Hadith 464