والمجاز مرسل إن كانت العلاقة المصححة غير المشابهة، وإلا فاستعارة
Majāz is mursal when its authorizing semantic relation is not resemblance; otherwise it is metaphor.
It is insufficient to observe that a word has departed from its literal meaning. Istiʿārah works through a relation of resemblance; majāz mursal depends on a different relation such as causation, part-for-whole or whole-for-part.
CaseUnderlying relationClassification
Calling a brave man a lionResemblanceMetaphor
Using a part to mean the wholePart–wholeMajāz mursal