18:7
إِنَّا جَعَلْنَا مَا عَلَى ٱلْأَرْضِ زِينَةً لَّهَا لِنَبْلُوَهُمْ أَيُّهُمْ أَحْسَنُ عَمَلًا
innā jaʿalnā mā ʿalā l-arḍi zīnatan lahā linabluwahum ayyuhum aḥsanu ʿamalan
We have adorned the earth with attractive things so that We may test people to find out which of them do best,
Verily! We have made that which is on earth as an adornment for it, in order that We may test them (mankind) as to which of them are best in deeds. [i.e. those who do good deeds in the most perfect manner, that means to do them (deeds) totally for Allâh’s sake and in accordance to the legal ways of the Prophet صلى الله عليه وسلم].