Sura 36 Ya-Sin (Ya Sin), aya 10

1. وَسَوَاءٌ عَلَيْهِمْ أَأَنْذَرْتَهُمْ أَمْ لَمْ تُنْذِرْهُمْ لَا يُؤْمِنُونَ

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

   36:10

Tafsiri: Saheeh International