﴿ وَقَالُوا۟ يَٰوَيْلَنَا هَٰذَا يَوْمُ ٱلدِّينِ ﴾

“and will say: “Oh, woe unto us! This is the Day of Judgment!””

And they the disbelievers will say ‘O yā is for calling attention woe to us!’ O our destruction is here waylanā is a verbal noun without any regular verbal conjugation. And the angels will say to them ‘This is the Day of Retribution’ the Day of Reckoning and Requital.