Slumber is mentioned in the Quran in these verses:

[2:255] God: there is no other god besides Him, the Living, the Eternal. Never a moment of unawareness or slumber overtakes Him. To Him belongs everything in the heavens and everything on earth. Who could intercede with Him, except in accordance with His will? He knows their past, and their future. No one attains any knowledge, except as He wills. His dominion encompasses the heavens and the earth, and ruling them never burdens Him. He is the Most High, the Great.

[3:154] After the setback, He sent down upon you peaceful slumber that pacified some of you. Others among you were selfishly concerned about themselves. They harbored thoughts about God that were not right – the same thoughts they had harbored during the days of ignorance. Thus, they said, “Is anything up to us?” Say, “Everything is up to God.” They concealed inside themselves what they did not reveal to you. They said, “If it was up to us, none of us would have been killed in this battle.” Say, “Had you stayed in your homes, those destined to be killed would have crawled into their death beds.” God thus puts you to the test to bring out your true convictions, and to test what is in your hearts. God is fully aware of the innermost thoughts.

[8:11] He caused peaceful slumber to overtake you and pacify you, and He sent down water from the sky to clean you therewith. He protected you from the devil’s curse, reassured your hearts and strengthened your foothold.

To learn more, read the Quran in English.

Want to study the Quran every week? We provide online Friday meetings every Friday.