Surah Yunus 10:53

۞ وَيَسْتَنۢبِـُٔونَكَ أَحَقٌّ هُوَ ۖ قُلْ إِى وَرَبِّىٓ إِنَّهُۥ لَحَقٌّ ۖ وَمَآ أَنتُم بِمُعْجِزِينَ

And they ask information of you, [O Muḥammad], "Is it true?" Say, "Yes, by my Lord. Indeed, it is truth; and you will not cause failure [to Allāh]."

Translation: Saheeh International

Tafsir

And they ask you to tell to inform them ‘Is it true?’ that which you promise us in the way of chastisement and resurrection? Say ‘Aye indeed by my Lord! Verily it is true and you cannot escape’ you cannot elude the chastisement.

Excerpt from Tafsir al-Jalalayn, commentary on 10:53, via Quran.com. The reader has the full commentary and 9 more tafsirs.