Musnad Ahmad 30:3126

Surayj narrated to us, Fulayh narrated to us, Hilal ibn Ali narrated to us, from Abd al-Rahman ibn Abi Amrah, from Abu Hurayrah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "No one among you will be saved by his deeds." They said: "Not even you, O Messenger of Allah?" He said: "Not even me, unless Allah covers me with His favor and mercy. But strive for correctness, be moderate, and have glad tidings."