Call To Good And Forbid Evil

Al-Imaam Muhammad ibn Saalih al-'Uthaymeen (may Allaah have mercy upon him) commented on the statement of Allaah: 

"And let there be from amongst you a group calling to that which is good, commanding the right and forbidding the wrong. Those are the ones who are successful. And do not be like those who separated and differed after the guidance has come to them." (Aali 'Imraan: 104-105) 

The Shaykh (may Allaah have mercy upon him) stated: 

"This indicates that leaving off  the commanding of the right and the forbidding of the wrong is a cause for the differing and separation (amongst the Muslims)." (Liqaa-aat Ma'a Rijaalil-Hisbah pg.9-10)

Shaykh 'Uthaymeen (may Allaah have mercy upon him) comments on the statement of Allaah: 

"Therefore whoever pardons and rectifies then his reward is upon Allaah." (Ash-Shooraa: 40). 

The Shaykh commented saying: 

"This is in regards to the rights between the people. Allaah has made Islaah a condition in pardoning (others) with His statement: "and rectifies." This indicates that if there's no rectification in pardoning, then pardoning is not legislated." (Liqaa-aat Ma'a Rijaalil-Hisbah pg. 11-12)