Musnad Ahmad 30:2931

'Abd al-Rahman narrated to us, Hammad narrated to us, from Muhammad, who said: I heard Abu Hurayrah saying: I heard Abu al-Qasim (peace and blessings of Allah be upon him) saying: "There is not one among you whom his deeds will cause to enter Paradise." They said: "Not even you, O Messenger of Allah?" He said: "Not even me, unless Allah covers me with mercy from Him." Bahz said: "And favor," and he placed his hand upon his head.