(Al-Ahraf) 7 : 199
خُذِ الْعَفْوَ وَأْمُرْ بِالْعُرْفِ وَأَعْرِضْ عَنِ الْجَاهِلِينَ

You hold the means of pardon, you command with the Justice, and you neglect the ignorant.