Musnad Ahmad 30:1326

Mansur ibn Salamah narrated to us, Sulayman—meaning Ibn Bilal—informed us, from al-Ala’, from his father, from Abu Hurayrah, from the Prophet (peace and blessings of Allah be upon him), who said: "Hasten to perform deeds before six things: the rising of the sun from its place of setting, the Dajjal, the smoke, the Beast, the specific affair of one of you (death), and the general affair (the Hour)."