Musnad Abu Ya'la al-Mawsili 160:121

And with his chain of narration, that the Messenger of Allah (may Allah bless him and grant him peace) said: "Hasten to perform deeds before six [things occur]: the rising of the sun from its place of setting, or the Dajjal, or the smoke, or the beast, or the specific affair of one of you [death], or the general affair [the Hour]."