Why Did Muslims Back Then Have Slaves/ Servants?
Islam inherited slavery from the society as its ingredient. Slaves were engaged in maintaining agriculture, business and served as home servants and masters had children from their slave girls. This system could not be uprooted immediately. A gradual system of Muktabat was introduced according to which slaves could buy their freedom and the society was obligated to help them through Zakat. New slaves were forbidden to make from the prisoners of war. If slaves were freed at once, it would play a havoc with the society. and the slaves would have lost their jobs and shelters. To be Muslim does not necessary to work with your hands. Those who could afford had slaves to run their affairs. Simplicity is not any obligation.