What is the way to deal with a friend who converted to Judaism after his success, abandoned prayer, and began to hate Arabs and Muslims and support the Jews, despite his previous deep understanding of the Islamic religion?

Supporting the distorted Jewish religion after the advent of Prophet Muhammad (peace be upon him), or preferring it over Islam, or believing that following it is permissible, is one of the nullifiers of Islam, expelling its perpetrator from the faith by the consensus of scholars. To rectify the situation of one who has fallen into this:

1. Do not despair of convincing and inviting him through persistent dialogue and continuous effort, while avoiding provoking him to prideful sin.

2. Treat him with good manners and kind conduct.

3. Gift him specialized books on interfaith dialogue that expose Zionism and distorted Judaism, such as books by Abd al-Wahhab al-Messiri, Ahmed Shalaby, and Saud al-Khalaf.

4. Show him files documenting the crimes of the Zionist entity.

5. Pray for his guidance.