(say to him) proves that Islam calls human beings to gentleness not to terrorism nor extremism.
However, the West and the enemies of Islam and some others who adopt the same thoughts insist that the seeds of violence and extremism are present in our Islamic teachings.
We tell them that the Qur’an, the Sunnah, history and also the reality today deny their claims. This verse is a proof.
تزكَّى (purify yourself): To purify yourself from disbelief and transgression.