Can the designated wife transfer her right to travel to another wife?
General Chapter
Al-Mughni
Book of the Wedding Feast
Primary text
If the designated wife gifts her right to travel to another wife, this is permissible if the husband consents, as the right belongs to her, rendering her gift valid to him, similar to gifting her turn for marital intimacy while residing at home. It is not permissible without the husband's consent due to the same ruling established for gifting a night's turn at home.
Supporting text
If the wife gifts her right to the husband or to all co-wives, it is valid.