Surah As-Saffah (Those Angels Lines up in Ranks), Verse 157

فَاْتُوْا بِكِتٰبِكُمْ اِنْ كُنْتُمْ صٰدِقِیْنَ ۟

Faatoo bi Kitaabikum in kuntum saadiqeen

“Then bring ye your Book (of authority) if ye be truthful!”

Quran 37:157 (Yusuf Ali Translation)