Allāh ﷻ says in the Holy Qur’ān, do not forget the favour between yourselves. Never forget the person who brought you to the way of Allāh ﷻ. Even if they later go astray or leave the way, pray for them and remember the good they did. If you bring someone to the way, do not think you own them. Be thankful they continue, and Allāh ﷻ will give you your reward.