فَأَسْقِطْ عَلَيْنَا كِسَفًا مِّنَ ٱلسَّمَآءِ إِن كُنتَ مِنَ ٱلصَّٰدِقِينَ
Therefore cause a portion of the heaven to come down upon us, if you are one of the truthful.