فيصلح للدفع دون الإلزام
It is fit for rebuttal or defense, not by itself for imposing a new entitlement or obligation.
Defensive use (dafʿ) preserves an already established situation against an unproved new claim. Affirmative imposition (ilzam) establishes a new right, obligation, or financial claim against another party.
These are not interchangeable. “Do not overturn what was established without proof” is a limited principle; “every new entitlement follows from that prior status” is a stronger claim and requires independent support.