What is the ruling of Islamic law regarding a colleague who seized clients from my specialization after I had distributed clients among colleagues, which led to my material and psychological harm, and will Allah grant me victory and restore my rights?

This world is not a realm of absolute recompense and justice; complete justice will be in the Hereafter, where no soul will be wronged in the slightest. The oppressed will receive their rights on the Day of Resurrection, and the oppressor will be compelled to fulfill the rights due from them. A Muslim should not object to Allah's decree and destiny, for Allah is not questioned about what He does. The supplication of a believer is answered in one of three ways: hastened fulfillment of the request, warding off an equivalent evil, or storing it for the Hereafter.