Mistake 1: Every difficult text is khafi. Correction: khafi specifically involves an external feature affecting the application of an otherwise intelligible expression.
Mistake 2: Mushkal and mujmal are always solved merely by opening a dictionary. Correction: mushkal requires inquiry and reflection; mujmal may require explanation by the speaker.
Mistake 3: Calling riba mujmal makes its prohibition uncertain. Correction: the prohibition is explicit; the issue concerns technical boundaries and instances.
Mistake 4: Restraint with mutashabih equals disbelief. Correction: the restraint concerns unwarranted certainty about a specific meaning, not assent to its true intended reality.