Quran 22:68 from Surah Al-Hajj on Divine Marvels.
وَإِن جَٰدَلُوكَ فَقُلِ ٱللَّهُ أَعۡلَمُ بِمَا تَعۡمَلُونَ
English translation: And if they argue (with) you then say Allah (is) most knowing of what you do
Transliteration: wa-in jadaluka faquli al-lahu a'lamu bima ta'maluna