Musannaf Ibn Abi Shayba 37:210

Abu Khalid narrated to us, from Juwaybir, from al-Dahhak, regarding His saying: "There will be sent against you both a flame of fire." He said: A fire that emerges from the direction of the west. It gathers the people, to the extent that it gathers the monkeys and the swine. It spends the night where they spend the night, and it rests at midday where they rest at midday.