If you live in Israel and sell a slave to someone outside of Israel, he is set free? Which owner sets him free? If the slave went on his own to follow his master to live outside of Israel, then he does not get set free if he gets sold after that. But it depends on if they moved abroad temporarily or permanently. Redeeming captives, sifrei Torah, mezuzot, and tefillin for high prices is forbidden. Details of those laws are discussed.