سورة Ya-Sin 36:6

لِتُنذِرَ قَوْمًۭا مَّآ أُنذِرَ ءَابَآؤُهُمْ فَهُمْ غَـٰفِلُونَ ٦

so that you may warn a people whose forefathers were not warned, and so are heedless