Rabbi Mana said: How must a man say the Habdalah blessing? (He does this) over the cup of wine, with the light of fire, and he says: Blessed art Thou, O Lord our God, King of the universe, who creates the various flames of fire; and when he removes his hand from the fire (flame) he says: Blessed art Thou, O Lord, who divides the holy from the profane.
If he have no wine he puts forth his hands towards the light of the lamp and looks at his nails, which are whiter than his body, and he says: Blessed art Thou, O Lord our God, King of the universe, who creates various flames of fire; and when he has removed his hands from the fire, he says: Blessed art Thou, O Lord, who divides the holy from the profane.