Study Guide Kiddushin 21 Today's daf is sponsored by Amy Cohn on the Yahrzeit of her father Rav Dov Chaim ben Zeev z"l, on his 9th yahrzeit, who taught all his five daughters Talmud and the love of Torah. "Abballe: Since I have been doing daf yomi with Rabanit Michelle I am reminded of many of your beautiful teachings and feel your presence every morning as I learn the daf!" Can a house in a walled city be redeemed partially? Can this law be derived from laws of a field in a non-walled city that was sold which cannot be redeemed partially? Can a field that was sanctified be redeemed partially? Can a house in a walled city be redeemed by relatives? Can this be derived from laws of a field in a non-walled city that can be redeemed by relatives or is it a unique law there? Can a Jewish slave sold to a Jew be redeemed by relatives? Can this be derived from laws of a Jewish slave sold to a gentile owner that can be redeemed by relatives or is it a unique law there? The Gemara derives from the Torah laws regarding the piercing of the ear of a slave who wants to stay longer.