173 — Suwayd ibn Saʿīd narrated to us: Yahyā ibn Zakariyyā ibn Abī Zā’ida narrated to us, from ʿAbd Allāh ibn Saʿīd, from his father, from Abū Hurayra—may Allah be pleased with him—from the Prophet—may Allah bless him and grant him peace—who said: “Usury comprises seventy kinds of sin. The least of them is like a man having intercourse with his own mother, and the gravest form of usury is an attack on the honor of a Muslim man.”