• The basic principle is that it is prohibited for a Muslim to forsake his fellow-Muslim, unless there is a reason to allow it. • If your Muslim brother did something you do not agree with, or the issue is a matter of different opinions, then you should explain to him that you do not agree with what he did, or with his mistaken point of view.

Here is how to treat non-Muslims: 1. Islam urges Muslims to show kindness to parents even if they are non-Muslims. 2. Islam advises Muslims to treat neighbors kindly even if they are not Muslim. 3. Islam encourages Muslims to ensure justice and show kindness to non-Muslims who are not fighting Muslims. 4. Islam prohibits killing non-Muslims living under Muslim rule. 5. Islam prohibits wronging a mu‘ahid, detracting from his rights, or burdening him with more work. 6. Islam prohibits committing transgression and commands justice.