Surah Al-Kahf, ayah 7

18:7

إِنَّا جَعَلۡنَا مَا عَلَى ٱلۡأَرۡضِ زِينَةٗ لَّهَا لِنَبۡلُوَهُمۡ أَيُّهُمۡ أَحۡسَنُ عَمَلٗا ٧

Innā ja'alnā mā 'alal-ardi zīnatal lahā linabluwahum ayyuhum ahsanu 'amalā

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.