Ali's counsel on restraining lustful gazes

Nahj al-Balāgha|Volume 1|Book 3|Chapter 420

Book 3, Chapter 420

رُوَيْداً إِنَّمَا هُوَ سَبٌّ بِسَبٍّ، أَوْ عَفْوٌ عَنْ ذَنْبٍ.

Wait a bit. There should either be abuse for abuse or else pardon from the offence.