A legal charge or obligation; to entrust or charge someone with a task. A person who meets the legal prerequisites becomes a mukallaf (a person obligated by law to discharge a legal duty). For instance, prayer is a taklif imposed upon those who reach the age of discernment (bulgh). A woman who is menstruating does not have a taklif to perform prayer. Hardship or incapacity will relieve a person from certain obligations or impose less demanding obligations, for instance, praying while sitting down in the case of a sick person. A taklif imposed upon property is an encumbrance.