So taste [punishment] because you forgot the meeting of this, your Day; indeed, We have [accordingly] forgotten you. And taste the punishment of eternity for what you used to do."
So now taste, for that you forgot the encounter of this your day! We indeed have forgotten you. Taste the chastisement of eternity for that you were doing!'
"Taste ye then - for ye forgot the Meeting of this Day of yours, and We too will forget you - taste ye the Penalty of Eternity for your (evil) deeds!"