Smart Law Journal (JSL) Is a journal for types of scientific publications in the field of sharia science and Islamic law. The field of sharia in question is more about the development of sharia muamalah between Muslims which is related to the development of the use of sharia law and etiquette in Indonesia. The submitted manuscript is the result of original research, literature study, and related legal issues being studied/experienced. This journal is published twice a year (March and September).