"Give your games to friends: Xbox One is designed so game publishers can enable you to give your disc-based games to your friends. There are no fees charged as part of these transfers. There are two requirements: you can only give them to people who have been on your friends list for at least 30 days and each game can only be given once."
http://majornelson.com/2013/06/06/details-on-xbox-one-connectivity-licensing-and-privacy-features/
http://majornelson.com/2013/06/06/details-on-xbox-one-connectivity-licensing-and-privacy-features/