Case: After witnessing an extraordinary event associated with a righteous person, someone treats that person as a new prophet or lawgiver.
The Prophet ﷺ is the final prophet, and his message addresses all humanity. Accepting the possibility of karāmāt does not reopen prophecy or remove obedience to the Muhammadan law. A saintly miracle is not a new revelation or a prophetic miracle.
The distinctions matter: a prophetic miracle supports a prophet’s truthfulness; a karāmah is an extraordinary occurrence associated with a saint; bringing revealed law belongs to prophethood.