If a 21 year old boy lives abroad for studies and performs Mutah with a non-Muslim woman from the Ahl-e-Kitab without telling his family, is it permissible?
If he has a Muslim permanent wife, he needs to take her permission. If he has no wife, then he is allowed to perform Mut’ah with Ahlul Kitab woman with out permission from his family. He must follow all the conditions of the Mut’ah marriage.
Wassalam.