﴿ أَلَمْ يَرَوْا۟ أَنَّا جَعَلْنَا ٱلَّيْلَ لِيَسْكُنُوا۟ فِيهِ وَٱلنَّهَارَ مُبْصِرًا ۚ إِنَّ فِى ذَٰلِكَ لَءَايَٰتٍۢ لِّقَوْمٍۢ يُؤْمِنُونَ ﴾

“for, were they not aware that it is We who had made the night for them, so that they might rest therein, and the day, to make [them] see? In this, behold, there are messages indeed for peo­ple who will believe!”

Do they not see that We made We created the night that they like others may rest in it and the day for sight? meaning for people to see in it so that they may go about their business therein. Surely in that there are signs indications of His power exalted be He for a people who believe — they the believers are singled out for mention because they benefit from such signs in their faith in contrast to the disbelievers.