Quran 26:132 from Surah Ash-Shu'araa on Divine Marvels.
وَٱتَّقُواْ ٱلَّذِيٓ أَمَدَّكُم بِمَا تَعۡلَمُونَ
English translation: And fear One Who has aided you with what you know
Transliteration: wa-ittaqu alladhi amaddakum bima ta'lamuna