What does objecting against wrongdoing in the heart mean?

All perfect praise be to Allaah, the Lord of the worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His slave and messenger.

There are two issues to be discussed regarding objection against wrongdoing in the heart:

Objection against wrongdoing in the heart is only to be done when a Muslim is neither able to take action towards rectifying the wrongdoing nor to speak out against it, in view of the conditions and guidelines set forth for enjoining what is right and forbidding what is evil. The Prophet, sallallaahu ‘alayhi wa sallam, ordered the one who sees an evil to change it physically with his hand if he was able to do so. If he could not, he should change it by his tongue (by advising and/or condemning), and finally by (detesting it with) his heart, and he, sallallaahu ‘alayhi wa sallam, informed that this is the weakest level of faith. [Muslim]

Objecting against wrongdoing in the heart means to despise and detest it, to wish you had the ability to change it, and to be depressed for not having such an ability.  Feeling depressed and frustrated about not being able to change the evil is the sign of sincere objection and rejection in the heart. One should also continue to ask Allaah The Almighty for assistance in altering the evil.

It is also important to note that if one is unable to change the evil act, then he must leave the place where Allaah is being disobeyed. If one has the ability to leave such a place, then objection in the heart while remaining in the place is not sufficient.  Allaah The Almighty Said (what means):

Allaah Knows best.