102:4

ثُمَّ كَلَّا سَوْفَ تَعْلَمُونَ

Transliteration:

Thumma kalla sawfa taAAlamoona

Word by Word:

Then, nay! Soon you will know.

Translations:

And once again: Nay, in time you will come to understand!

Again, ye soon shall know!

Nay, but ye will come to know!

Nay, again, you will soon know.

Then no! You are going to know.