Qur'ān 2:6 · Al-Baqarah (البقرة)

إِنَّ ٱلَّذِينَ كَفَرُوا۟ سَوَآءٌ عَلَيْهِمْ ءَأَنذَرْتَهُمْ أَمْ لَمْ تُنذِرْهُمْ لَا يُؤْمِنُونَ

Indeed, those who disbelieve - it is all the same for them whether you warn them or do not warn them - they will not believe.