And Qutaybah ibn Sa'id narrated to us, Hatim—meaning Ibn Isma'il—narrated to us, from Yazid ibn Abi 'Ubayd, the freed slave of Salamah ibn al-Akwa', who said: I said to Salamah, "On what did you pledge allegiance to the Messenger of Allah, peace and blessings be upon him, on the day of al-Hudaybiyyah?" He said, "On death."