Khitamuhu miskun wafee thalika falyatanafasi almutanafisoona

The last thereof (that wine) will be the smell of musk, and for this let (all) those strive who want to strive (i.e. hasten earnestly to the obedience of Allah).

Whose seal is musk - for this let (all) those strive who strive for bliss -

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