Quran 37:157 from Surah As-Saaffaat on Divine Marvels.
فَأۡتُواْ بِكِتَٰبِكُمۡ إِن كُنتُمۡ صَٰدِقِينَ
English translation: Then bring your book if you are truthful
Transliteration: fatu bikitabikum in kuntum sadiqina