2:6
إِنَّ ٱلَّذِينَ كَفَرُوا۟ سَوَآءٌ عَلَيْهِمْ ءَأَنذَرْتَهُمْ أَمْ لَمْ تُنذِرْهُمْ لَا يُؤْمِنُونَ
inna alladhīna kafarū sawāon ʿalayhim a-andhartahum am lam tundhir'hum lā yu'minūna
As for those who disbelieve, it makes no difference whether you warn them or not: they will not believe.
Verily, those who disbelieve, it is the same to them whether you (O Muhammad صلى الله عليه وسلم) warn them or do not warn them, they will not believe.