Dalil
العربية

Quran Al-Mutaffifin 83:26

خِتَٰمُهُۥ مِسۡكٞۚ وَفِي ذَٰلِكَ فَلۡيَتَنَافَسِ ٱلۡمُتَنَٰفِسُونَ

Translation

The last of it is musk. So for this let the competitors compete.