What is the legal ruling when the lessor prevents the lessee from utilizing leased property for a portion of the term, or fails to complete a service contract?

Primary text

The ruling concerning a lessor preventing the lessee from utilizing a property for part of the agreed term, or when one hires themselves or a slave for service for a duration and fails to complete it, or hires out work (like building a wall, tailoring, or digging a well) and fails to finish the contracted scope, is that the lessor or contractor does not earn any compensation, based on the principle that delivery of the entire subject matter of the contract was not fulfilled.