أَوْ تُسْقِطَ ٱلسَّمَآءَ كَمَا زَعَمْتَ عَلَيْنَا كِسَفًا أَوْ تَأْتِىَ بِٱللَّهِ وَٱلْمَلَـٰٓئِكَةِ قَبِيلًا
Aw tusqitas samaaa'a kamaa za'amta 'alainaa kisafan aw taatiya billaahi walma laaa'ikati qabeelaa
or until you cause the sky to fall upon us in fragments, as you have claimed, or bring God and the angels before us face to face,