62 The Lord also says, “When you shall see the abomination of desolation stand in the holy place (whoso reads, let him understand), then let them which be in Judea flee into the mountains, and let him which is on the housetop not come down to take his clothes; neither let him which is in the field return back to take anything out of his house. And woe unto them that are with child, and to them that give suck, in those days! For then shall be great tribulation, such as was not since the beginning of the world. And except those days should be shortened, there should no flesh be saved.” And Daniel says, “And they shall place the abomination of desolation a thousand two hundred and ninety days. Blessed is he that waits, and comes to the thousand two hundred and ninety-five days.”
Source: The Antichrist (New Advent)