What is the ruling on a wife maintaining kinship ties when her husband has sworn an oath of divorce upon her if she visits her paternal uncle's house, or greets him, or any member of his family, knowing that she met him but did not greet him or shake his hand?

Maintaining ties of kinship with a mahram relative is obligatory, and obedience to the husband is obligatory. The husband should not have sworn an oath preventing his wife from maintaining ties with her paternal uncle, as this falls under conditional divorce, and divorce occurs when the condition is met, according to the majority of scholars. The wife should strive to maintain ties with her paternal uncle by sending him gifts and apologizing for not visiting him. It is better not to disclose her husband's oath to him.