5th Ayah from Surah An Naba
ثُمَّ كـَلَّا سَيَعۡلَمُونَ ٥
Thumma Kallā Saya`lamūna
Then, no! They are going to know.
In the end they will find out.
Nay, again, they will come to know!
Again, indeed they will soon know.
Nay, again, but they will come to know!
Verily, verily they shall soon (come to) know!