Surah Al-Anfal — Ayah 32 (8:32)
وَإِذۡ قَالُواْ ٱللَّهُمَّ إِن كَانَ هَٰذَا هُوَ ٱلۡحَقَّ مِنۡ عِندِكَ فَأَمۡطِرۡ عَلَيۡنَا حِجَارَةٗ مِّنَ ٱلسَّمَآءِ أَوِ ٱئۡتِنَا بِعَذَابٍ أَلِيمٖ ٣٢
English translation (Saheeh International)
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."
Brief commentary
Remember when the idolaters said to Allah that if what Muhammad brought was true, then He should rain rocks down from the sky to destroy them, or bring them a painful punishment. They said this going to extremes in their denial and rejection.