Quran 11:25 from Surah Hud on Divine Marvels.
وَلَقَدۡ أَرۡسَلۡنَا نُوحًا إِلَىٰ قَوۡمِهِۦٓ إِنِّي لَكُمۡ نَذِيرٞ مُّبِينٌ
English translation: And verily We sent Nuh to his people Indeed I am to you a warner clear
Transliteration: walaqad arsalna nuhan ila qawmihi inni lakum nadhirun mubinun