أو مظنونات يحكم فيها بسبب الرجحان
Or probable premises in which judgment is made because one side is more likely.
Rhetorical arguments need not rely exclusively on statements by trusted people. They may also use maẓnūnāt, whose acceptance rests on indications, accumulated experience or other evidence that favors a conclusion.
For example, current cloud patterns and winds may make rain likely. This can be a reasonable judgment without establishing rain as a certainty.