Enjoining good

Enjoining good (amr bil-ma'rouf) and forbidding evil (nahiy an al-munkar)
"Let there arise from you a group of people inviting to what is good, enjoining what is right, and forbidding what is wrong; these are the ones who will be successful." (3:104)
In order for religion to progress and society to flourish, people must take the initiative and attempt to guide each other towards the right and away from the wrong. This kind of advising is mandatory on those who believe in Allah and the Day of Judgement. Giving sincere advice is not, as some may argue, meddling in someone else's business, but is in fact a valuable favor and one of the best forms of charity.