Surah Ad-Dukhan, ayah 16

يَوۡمَ نَبۡطِشُ ٱلۡبَطۡشَةَ ٱلۡكُبۡرَىٰٓ إِنَّا مُنتَقِمُونَ ١٦

Yawma nabtishul-batshatal-kubrā innā muntaqimūn

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