Quran 15:64 from Surah Al-Hijr on Divine Marvels.
وَأَتَيۡنَٰكَ بِٱلۡحَقِّ وَإِنَّا لَصَٰدِقُونَ
English translation: And we have come to you with the truth and indeed we surely (are) truthful
Transliteration: wa-ataynaka bil-haqi wa-inna lasadiquna