Quran 75:6 from Surah Al-Qiyaama on Divine Marvels.
يَسۡـَٔلُ أَيَّانَ يَوۡمُ ٱلۡقِيَٰمَةِ
English translation: He asks When (is the) Day (of) the Resurrection
Transliteration: yasalu ayyana yawmu al-qiyamati