Ya-Sin 11

إِنَّمَا تُنذِرُ مَنِ ٱتَّبَعَ ٱلذِّكْرَ وَخَشِىَ ٱلرَّحْمَـٰنَ بِٱلْغَيْبِ ۖ فَبَشِّرْهُ بِمَغْفِرَةٍ وَأَجْرٍ كَرِيمٍ

innamā tundhiru mani ittabaʿa l-dhik'ra wakhashiya l-raḥmāna bil-ghaybi fabashir'hu bimaghfiratin wa-ajrin karīmin

You can only warn one who follows the message and fears the Most Merciful unseen. So give him good tidings of forgiveness and noble reward.