Ar-Ra'd 13:7

Wayaqoolu allatheena kafaroo lawlaonzila AAalayhi ayatun min rabbihi innama anta munthirunwalikulli qawmin had

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.

The disbelievers say, “Why is it that no sign has been sent down to him from his Lord?” You are but a warner; and for every people there is a guide.