Surah Ya-seen - Aya 10

Surah Ya-seen - English - Aya 10 Aya count 83

وَسَوَآءٌ عَلَيْهِمْ ءَأَنذَرْتَهُمْ أَمْ لَمْ تُنذِرْهُمْ لَا يُؤْمِنُونَ ﴿١٠﴾

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