Quran 13:7 from Surah Ar-Ra'd on Divine Marvels.
وَيَقُولُ ٱلَّذِينَ كَفَرُواْ لَوۡلَآ أُنزِلَ عَلَيۡهِ ءَايَةٞ مِّن رَّبِّهِۦٓۗ إِنَّمَآ أَنتَ مُنذِرٞۖ وَلِكُلِّ قَوۡمٍ هَادٍ
English translation: And say those who disbelieved Why not has been sent down to him a sign from his Lord Only you (are) a warner and for every people (is) a guide
Transliteration: wayaqulu alladhina kafaru lawla unzila alayhi ayatun min rabbihi innama anta mundhirun walikulli qawmin hadin