they regard as a favor to you that they have embraced islam. say do not count your islam as a favor to me. nay but allah has conferred a favor upon you that he has guided you to the faith if you indeed are true. 
يمنون عليك أن أسلموا قل لا تمنوا علي إسلامكم بل الله يمن عليكم أن هداكم للإيمان إن كنتم صادقين