Ubayd Allah ibn Umar al-Qawariri, Abu Ghassan al-Misma'i, Zuhayr ibn Harb, Ishaq ibn Ibrahim, Muhammad ibn al-Muthanna, and Ibn Bashshar narrated to us — Ishaq said: "He informed us," and the others said: "He narrated to us" — Mu'adh ibn Hisham narrated to us, my father narrated to me, from Qatadah, from 'Amir al-Sha'bi, from Suwayd ibn Ghafalah, that Umar ibn al-Khattab delivered a sermon at al-Jabiyah and said: "The Prophet of Allah, peace and blessings be upon him, forbade the wearing of silk except for the place of two fingers, or three, or four."