However, the Kharijites were the most zealous in applying this principle in practice. Whenever the Kharijites saw a wrong, whether by the governed or the ruler, they would call for its change, often resorting to the sword with indifference to the outcome, whether the wrong was corrected, persisted in, or escalated. This extremism in their application of this duty led to the continuous chain of revolutions that marked their history, particularly targeting the Umayyad and Abbasid rule. They reached such an extreme that the Azariqa adopted the principle of "al-istiraad," where Muslims were killed indiscriminately in their markets and places of peace.

Imam Al-Ghazali was one of the Ash'aris most dedicated to this principle. He dedicated an entire book in "Ihya Ulum al-Din" to it, titled "The Book of Enjoining Good and Forbidding Evil." He depicted the importance of this duty and the great harm Muslims suffer by neglecting it, stating: "Enjoining good and forbidding evil is the greatest pillar of religion. It is the mission for which God sent all the prophets. If its fabric were folded, its knowledge and practice neglected, prophecy would be nullified, the religion would be corrupted, ignorance would spread, corruption would prevail, the land would be ruined, and the people would perish, and they would not realize their destruction until the day of reckoning."

Muslims chose a gradual approach to changing evil, starting with the easiest and least harmful, without causing greater harm than the evil itself. This is what Al-Ghazali described as the degrees of accountability, stating: "The first is awareness, then notification, then prohibition, then admonition and advice, then insult and reprimand, then changing by hand, then threatening with a blow, then inflicting a blow and making it effective, then drawing a weapon, then seeking support and gathering troops." This gradual approach is based on the goal of... Some went so far as to say that one of the conditions for enjoining good and forbidding evil is that it is likely that doing so will not lead to greater harm than it. See: Al-Qadi Abd al-Jabbar, "Sharh al-Usul al-Khamsa." See: Al-Shahrastani, "Al-Milal wa al-Nihal," and Al-Baghdadi, "Al-Farq bayn al-Firaq." Al-Ghazali, "Ihya Ulum al-Din."