Translation of the verse 28 from Surah Al-Mursalat : Number of verses 50 - - page 581 - Part 29.
Woe that Day to the deniers (of the Day of Resurrection)!
Woe, that Day, to the deniers.
(77:28) Woe on that Day to those that give the lie to the Truth! *16
*16) Here, this sentence signifies that the people who deny the coming of the Hereafter and regard it as impossible and irrational in spite of seeing these manifest signs of Allah's power and wisdom, may remain lost in their vain imaginations if they so like. But the Day when all this takes place against their expectations, they will realize that they have earned ruin on account of their own folly.
Source : Al-Mursalat Verse 28: Woe, that Day, to the deniers.