321 — Yahyā ibn Yūsuf al-Zammī related to us: Abū Bakr ibn Ayyāsh related to us, from al-Hasan ibn Amr, from Muhammad ibn Abd al-Rahmān ibn Yazīd, from his father, from Abdullah (may Allah be pleased with him), from the Prophet (may Allah bless him and grant him peace), who said: “The believer is neither one who maligns others nor one who habitually curses, nor is he obscene or foul-mouthed.”