Surah Al-Mutaffifin, Verse 26

خِتَٰمُهُۥ مِسۡكٞۚ وَفِي ذَٰلِكَ فَلۡيَتَنَافَسِ ٱلۡمُتَنَٰفِسُونَ٢٦

khitāmuhu mis'kun wafī dhālika falyatanāfasi l-mutanāfisūna

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