Verš 18:7

To, co na zemi jest, učinili jsme okrasou její, abychom vyzkoušeli, kdo z nich v konání svém je nejlepší.

Tafsir al-Jalalayn

Truly We have made all that is on the earth, in the way of animals, plants, trees, rivers and so on, as an adornment for it, that We may try them, that We may test mankind observing thereby, which of them is best in conduct, therein, that is, [to see which of them] is the most abstemious of it.