What is the ruling of Islam concerning money I took from my wife's mother as assistance, and is it considered a debt that must be repaid? And what is the husband's legitimate right, according to Sharia, if the wife requests a divorce, given that he sustained injuries as a result of her assault on him?

It is not obligatory to return money if it was a gift, and it is forbidden to assault a Muslim (physically, honorably, or financially). It is permissible to sue an assailant for assault, and a disobedient wife may be restrained until she relinquishes her rights and returns what she was given. We advise resorting to the Sharia court to establish rights.