Dalil
العربية

Quran Ya-Sin 36:10

وَسَوَآءٌ عَلَيۡهِمۡ ءَأَنذَرۡتَهُمۡ أَمۡ لَمۡ تُنذِرۡهُمۡ لَا يُؤۡمِنُونَ

Translation

And it is all the same for them whether you warn them or do not warn them - they will not believe.