Sura 26 Ash-Shu'ara' (The Poets), ayah 187

1. فَأَسْقِطْ عَلَيْنَا كِسَفًا مِنَ السَّمَاءِ إِنْ كُنْتَ مِنَ الصَّادِقِينَ

   So cause to fall upon us fragments of the sky, if you should be of the truthful."

   26:187

Translation: Saheeh International