The life of this world is made to seem fair to those who disbelieve, and they mock those who believe, and those who guard (against evil) shall be above them on the day of resurrection; and Allah gives means of subsistence to whom he pleases without measure.

Thou makest the night to pass into the day and Thou makest the day to pass into the night, and Thou bringest forth the living from the dead and Thou bringest forth the dead from the living, and Thou givest sustenance to whom Thou pleasest without measure.

And when you are greeted with a greeting, greet with a better (greeting) than it or return it; surely Allah takes account of all things.