Al-An'am 6:165

Wahuwa allathee jaAAalakum khala-ifaal-ardi warafaAAa baAAdakum fawqa baAAdindarajatin liyabluwakum fee ma atakuminna rabbaka sareeAAu alAAiqabi wa-innahu laghafoorun raheem

And it is He who has made you successors upon the earth and has raised some of you above others in degrees [of rank] that He may try you through what He has given you. Indeed, your Lord is swift in penalty; but indeed, He is Forgiving and Merciful.

It is He who made you the vicegerents of the earth and raised some of you in ranks over others, so that He may test you in what He has given you. Surely, your Lord is swift in punishing, and surely He is Most-Forgiving, Very-Merciful.