on the Day when We shall seize [all sinners] with a most mighty onslaught, We shall, verily, inflict Our retribution [on you as well]!

One day We shall seize you with a mighty onslaught: We will indeed (then) exact Retribution!

On the day when We shall seize them with the greater seizure, (then) in truth We shall punish.

On the day when We seize (them) with the most violent seizing; surely We shall exact retribution.

The Day We will strike with the greatest assault, indeed, We will take retribution.