Surah Ar-Ra'd, ayah 7

وَيَقُولُ ٱلَّذِينَ كَفَرُواْ لَوۡلَآ أُنزِلَ عَلَيۡهِ ءَايَةٞ مِّن رَّبِّهِۦٓۗ إِنَّمَآ أَنتَ مُنذِرٞۖ وَلِكُلِّ قَوۡمٍ هَادٍ ٧

Wayaqūlul-ladhīna kafarū lawlā unzila 'alayhi āyatum mir rabbihī innamā anta mundhirun walikulli qawmin hād

And those who disbelieved say, "Why has a sign not been sent down to him from his Lord?" You are only a warner, and for every people is a guide.