Quran 15:63 from Surah Al-Hijr on Divine Marvels.
قَالُواْ بَلۡ جِئۡنَٰكَ بِمَا كَانُواْ فِيهِ يَمۡتَرُونَ
English translation: They said Nay we have come to you with what they were in it disputing
Transliteration: qalu bal ji'naka bima kanu fihi yamtaruna