THE GENERAL PRINCIPLE OF ENJOINING AND FORBIDDING

All of what we are saying comes under the general principle which says that when benefit and harm are mixed up together, and one must choose between doing good with some bad side effects, or leaving that good to avoid its bad side effects, it is obligatory to choose the course having the greater overall or net benefit. This is because enjoining and forbidding though they entail the attainment of some benefit, and the prevention of some harm, its opposite must also be considered. If, in carrying out this enjoining or forbidding, there is benefit lost greater than the benefit gained, or harm is brought about greater than the harm which was avoided, then this is not part of that which Allah has ordered us to do, rather it is haram, because of the fact that its net harm is greater than its net benefit.