Musannaf Ibn Abi Shaybah 37689 — Habib Abu Salamah

Abu Salamah narrates that the night before the Day of Resurrection will be the length of three nights. So those who fear Allah will get up and pray, until when they have finished their prayer they will go back and sleep, until their sides grow weary. Then they will get up and pray, until when they have finished their prayer they will begin to await the sun from the place of its rising. But then, suddenly, the sun will come out from the west.