Abu Hurairah (may Allah be pleased with him) narrates from the Prophet (peace and blessings of Allah be upon him), he (peace and blessings of Allah be upon him) said: "Does any one of you await overwhelming wealth, or poverty that makes one forget (obedience and worship), or a disease that ruins, or old age that brings senseless talk, or sudden death, or the Dajjal—for the Dajjal is the worst awaited hidden trial—or the Hour, and the Hour is the greatest calamity and the most bitter thing." Its chain is weak. It was narrated by al-Tirmidhi and al-Nasa'i.