Surah Al-Anfal 8:32

وَإِذْ قَالُوا۟ ٱللَّهُمَّ إِن كَانَ هَـٰذَا هُوَ ٱلْحَقَّ مِنْ عِندِكَ فَأَمْطِرْ عَلَيْنَا حِجَارَةً مِّنَ ٱلسَّمَآءِ أَوِ ٱئْتِنَا بِعَذَابٍ أَلِيمٍ

And [remember] when they said, "O Allāh, if this should be the truth from You, then rain down upon us stones from the sky or bring us a painful punishment."

Translation: Saheeh International

Tafsir

And when they said ‘O God! If this that Muhammad (s) recites be indeed the truth revealed from You then rain down stones upon us from the heaven or bring on us a painful chastisement’ in return for our denial of it this was said by al-Nadr and others in mockery and in delusion that he had some insight and certainty …

Excerpt from Tafsir al-Jalalayn, commentary on 8:32, via Quran.com. The reader has the full commentary and 9 more tafsirs.