Quran 26:187 from Surah Ash-Shu'araa on Divine Marvels.
فَأَسۡقِطۡ عَلَيۡنَا كِسَفٗا مِّنَ ٱلسَّمَآءِ إِن كُنتَ مِنَ ٱلصَّٰدِقِينَ
English translation: Then cause to fall upon us fragments of the sky if you are of the truthful
Transliteration: fa-asqit alayna kisafan mina al-samai in kunta mina al-sadiqina