Musannaf Ibn Abi Shayba 37:177

Hussayn ibn Ali narrated to us, from Za'idah, from Abd al-Aziz ibn Rufay', from Abu al-Tufayl, from Hudhayfah, who said: The Beast will emerge twice before the Day of Resurrection, until men are struck because of it. Then it will emerge a third time at your greatest mosques. It will come to a people while they are gathered around a man, and it will say, "What gathers you around the enemy of Allah?" They will then hasten away, and it will brand the disbeliever, such that two men will be trading, and one will say, "Take this, O believer," and the other will say, "Take this, O disbeliever."