Muhammad ibn al-Muthanna and Ibn Bashshar narrated to us — and the wording is that of Ibn al-Muthanna — they said: Muhammad ibn Ja'far narrated to us, from Shu'bah, from Abu Maslamah, who said: I heard Abu Nadrah narrating from Abu Sa'id al-Khudri, who said: The one who is better than I informed me that the Messenger of Allah, peace and blessings be upon him, said to 'Ammar while he was digging the trench and wiping his head, saying: "Woe to the son of Sumayyah — a transgressing group will kill you."