What Is Qina (Hasad, Bughz And Jealousy)
Yes there can be circumstances where we hate someone because of some atrocity committed by them against a specific person or persons. Even Islam allows Muslims to take equal revenge against any oppression however forgiveness is recommended. But if one has a feeling of hatred for someone because of some genuine ethical reason, then there is no blame on the person. However, there should be no injustice done by us and we should not commit any unethical act against the other person. What is prohibited is haveing any ill feeling against another person when there is no ethical basis available for it, for example, when one starts having hatred or ill feelings against another person because of their success or because of our own liking/disliking etc. Please also refer to the video below from 11:20 to 13:18 https://youtu.be/OTd7lImHmb0?t=680