An-Naml 27:86

Alam yaraw anna jaAAalnaallayla liyaskunoo feehi wannahara mubsiraninna fee thalika laayatin liqawmin yu/minoon

Do they not see that We made the night that they may rest therein and the day giving sight? Indeed in that are signs for a people who believe.

Did they not see that We made the night, so that they may have rest in it, and (made) the day to make them see? Surely, in this there are signs for a people who believe.