اِنَّا جَعَلۡنَا مَا عَلَي الۡاَرۡضِ زِيۡنَةً لَّهَا لِنَبۡلُوَهُمۡ اَيُّهُمۡ اَحۡسَنُ عَمَلًا

Indeed, We have made that which is on the earth adornment for it that We may test them [as to] which of them is best in deed