Kuwait Court of Cassation principle number 3505

Entitlement to default interest on a debt. Its prerequisite. The debt must arise from a commercial obligation or commercial act. The debt being civil. Its effect. Prohibition on claiming interest thereon as usury prohibited under Sharia; every agreement to the contrary is void, and this nullity may be invoked at any stage of the proceedings, and the court may declare it of its own motion. The judgment's contravention thereof. Requires its cassation.