What is the ruling on a father preventing his daughter from joining her husband after the father stipulated that his daughter live with him to serve him, and the husband agreed, but then they disagreed?

Conditions in marriage are specific to the husband and wife. A condition set by the girl's father holds no value, and no obligation arises from it. He has no right to separate the husband and wife as long as she is content with him, because he possesses no authority over her affairs except that he is her guardian who marries her off when a suitable suitor proposes.