Quran 51:12 from Surah Adh-Dhaariyat on Divine Marvels.
يَسۡـَٔلُونَ أَيَّانَ يَوۡمُ ٱلدِّينِ
English translation: They ask When (is the) Day (of) Judgment
Transliteration: yasaluna ayyana yawmu al-dini