والأمر لطلب أداء ما وجب في الذمة بسبب سابق، لا لإثبات أصل الوجوب.
A command may demand performance of a liability already established by an earlier cause, rather than create the original liability itself.
For example, “Pay the sale price” concerns a price obligation arising from a sale contract. “Pay the wife's maintenance” concerns the relevant maintenance obligation under its own conditions. The subsequent command demands payment of what is due.
The cause that establishes liability and the instruction to discharge it are therefore analytically distinct. A directive to pay an existing debt need not itself be the basis for every condition by which that debt arose.
This helps explain how the object of an imperative may recur through independently renewed obligations.