The author—may Allah have mercy on him—relates, when citing the ḥadīth of al-Nawwās ibn Samʿān (may Allah be pleased with him) in Riyāḍ al-Ṣāliḥīn, that the Prophet ﷺ described the Dajjāl in these words: he will be a young man, one of Adam’s descendants, with tightly-curled hair; one of his eyes will be extinguished, as though it were a floating grape. Thus he is one-eyed and vile, yet Allah will send him as a trial for humankind.
He will come to people, call them, and claim to be their Lord. Allah will grant him extraordinary means, so that when he approaches a people who accept his call and believe in him, he will order the sky and it will rain, and he will order the earth and it will bring forth vegetation—events they will witness with their own eyes. He will say, “O sky, rain!” and it will rain; “O earth, produce!” and it will produce. This will not be by his own power but by the will of Allah, who enables him only as a test and an ordeal.
Those who follow him will see their livestock—sheep and camels—return in the evening with udders brimming, humps laden with fat, bellies distended and full. Then he will go to another people, invite them, and when they refuse him he will leave; the next morning they will find themselves destitute, their land barren, the sky withholding rain, their wealth gone. Yet these very people are the ones who will earn reward, and their ultimate end will be praiseworthy. As for the first group who believed in him and enjoyed rain and vegetation, they are the losers, even though they imagine themselves successful.
He will visit a desolate land devoid of buildings and inhabitants and proclaim, “O earth, bring forth your treasures!” The ground will cast out its hoards—gold, silver, and other minerals—which will follow him like swarming bees.
The Dajjāl will remain on earth for forty days. The first day will be as long as a year—twelve months, three hundred and sixty days—yet it will still count as one day. The second day will last a month—thirty days. The third will be the length of a jumʿah, that is, a week. The remaining days will number thirty-seven.