Surah Adh-Dhariyat 51:12

يَسْـَٔلُونَ أَيَّانَ يَوْمُ ٱلدِّينِ

They ask, "When is the Day of Recompense?"

Translation: Saheeh International

Tafsir

They ask the Prophet asking him derisively ‘When is the Day of Judgement?’ in other words ‘when will it come?’ and the response given to them is that it will come

Excerpt from Tafsir al-Jalalayn, commentary on 51:12, via Quran.com. The reader has the full commentary and 9 more tafsirs.