وَمِنْهَا: «أَيَّانَ» لِلزَّمَانِ اسْتِفْهَامًا، نَحْوُ: «أَيَّانَ يَوْمُ الدِّينِ؟».
Translation: Ayyāna is used to ask about time: “When is the Day of Recompense?”
Ayyāna is another temporal interrogative. In ayyāna yawmu d-dīn, the question concerns when the Day of Recompense will occur.
Book example: أَيَّانَ يَوْمُ الدِّينِ؟
When is the Day of Recompense?
Ayyāna: indeclinable temporal interrogative with the force of a fronted predicate; yawmu: postponed nominative subject and muḍāf; al-dīni: genitive complement.