Quran 7:136 from Surah Al-A'raaf on Divine Marvels.
فَٱنتَقَمۡنَا مِنۡهُمۡ فَأَغۡرَقۡنَٰهُمۡ فِي ٱلۡيَمِّ بِأَنَّهُمۡ كَذَّبُواْ بِـَٔايَٰتِنَا وَكَانُواْ عَنۡهَا غَٰفِلِينَ
English translation: So We took retribution from them and We drowned them in the sea because they denied Our Signs and they were to them heedless
Transliteration: fa-intaqamna min'hum fa-aghraqnahum fi al-yami bi-annahum kadhabu biayatina wakanu anha ghafilina