Quran 79:42 from Surah An-Naazi'aat on Divine Marvels.
يَسۡـَٔلُونَكَ عَنِ ٱلسَّاعَةِ أَيَّانَ مُرۡسَىٰهَا
English translation: They ask you about the Hour when (is) its arrival
Transliteration: yasalunaka ani al-sa'ati ayyana mur'saha