Musnad Abu Ya'la al-Mawsili 155:293

Ahmad ibn Ibrahim al-Dawraqi narrated to us, Mubashir narrated to us, from al-Awza'i, from Hassan ibn 'Atiyyah, from Muhammad ibn Abi 'Aishah, that he heard Abu Hurayrah saying: I heard the Messenger of Allah, peace and blessings of Allah be upon him, saying: "When one of you finishes the Tashahhud, let him seek refuge in Allah from four: from the punishment of Hell, from the punishment of the grave, from the trial of life and death, and from the evil of the False Messiah (al-Masih al-Dajjal)."