What is the ruling of Islamic law regarding a wife's refusal to waive her legitimate rights and her demand for the agreed-upon gold, in exchange for divorce from a husband who abused her and whom her family forced her to marry, and who did not pay her a dowry (mahr), deferred dowry (mu’akhar), or provide her with a bridal gift (shabka)?

Parents do not have the right to force their daughter to marry someone she does not desire. Reconciliation between spouses is better. If a woman is divorced, she has rights against her husband. If he did not specify a mahr (dowry) for her, she is entitled to a mahr al-mithl (a dowry customary for women of her status). If the promised gold was part of the mahr, it has the ruling of mahr. If it was a gift, it is not binding unless it has been taken possession of. There is no harm in a wife seeking khul' (divorce at the wife's instance, usually in return for compensation) from her husband in exchange for relinquishing her rights, unless the husband was harming her. The religious court is the reference point in case of dispute.