Quran 37:20 from Surah As-Saaffaat on Divine Marvels.
وَقَالُواْ يَٰوَيۡلَنَا هَٰذَا يَوۡمُ ٱلدِّينِ
English translation: And they will say O woe to us! This (is the) Day (of) the Recompense
Transliteration: waqalu yawaylana hadha yawmu al-dini