Neta Revai Through a Non-Jew
Question
In Halacha, is there a requirement for a Jewish adult to do the redemption of revai with a coin, or is it permissible for them to give a coin to a gentile as shaliach to do it? They are not obligated against Orlah, but is the monetary redemption of Revai a mitzvah which requires a Jew who is obligated to do it or merely a monetary action which anyone can do?