What is the ruling regarding a husband's failure to fulfill his promise and his breaking of the condition agreed upon before marriage, which stipulated his non-objection to his wife working as a dentist?

The husband must fulfill the conditions of the marriage contract stipulated by the wife for her benefit, as long as they do not violate Islamic law. If a condition leads to something forbidden by Islamic law, the wife must avoid the forbidden act, obey her husband, and abandon the action. Understanding should prevail between the spouses according to Islamic law, and causes of discord should be avoided.