Narrated Muhammad ibn Bakkar ibn ar-Rayyan and ‘Awn ibn Sallam—both said: narrated to us Muhammad ibn Talhah. (Another chain:) And narrated to us Muhammad ibn al-Muthanna: narrated to us ‘Abd ar-Rahman ibn Mahdi: narrated to us Sufyan. (Another chain:) And narrated to us Muhammad ibn al-Muthanna: narrated to us Muhammad ibn Ja‘far: narrated to us Shu‘bah. All of them (narrated) from Zubayd, from Abu Wa’il, from ‘Abdullah ibn Mas‘ud, who said: The Messenger of Allah (peace and blessings be upon him) said: "Reviling a Muslim is wickedness, and fighting him is disbelief." Zubayd said: I said to Abu Wa’il: "Did you hear it from ‘Abdullah, narrating it from the Messenger of Allah (peace and blessings be upon him)?" He said: "Yes." And in the narration of Shu‘bah, the statement of Zubayd to Abu Wa’il is not mentioned.