Revealed in the early years of the Makkan period of the mission of God’s Messenger, upon him be peace and blessings, this sūrah of 50 verses takes its name from the word al-mursalāt (the companies sent) in the first verse. It mentions the functions of some classes of angels in certain universal events, focusing attention on the Power of God, the truth of the Resurrection and the afterlife, and warning against the denial of this truth.