Sura 7 Al-A'raf (The Heights), ayah 199

1. خُذِ الْعَفْوَ وَأْمُرْ بِالْعُرْفِ وَأَعْرِضْ عَنِ الْجَاهِلِينَ

   Take what is given freely, enjoin what is good, and turn away from the ignorant.

   7:199

Translation: Saheeh International