Surah Al-Baqarah, Verse 6

إِنَّ ٱلَّذِينَ كَفَرُواْ سَوَآءٌ عَلَيۡهِمۡ ءَأَنذَرۡتَهُمۡ أَمۡ لَمۡ تُنذِرۡهُمۡ لَا يُؤۡمِنُونَ٦

inna alladhīna kafarū sawāon ʿalayhim a-andhartahum am lam tundhir'hum lā yu'minūna

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