To classify ḥusn al-taʿlīl, first identify the quality or event. Ask whether it actually obtains or is merely supposed. If established, ask whether its usual cause is evident. If not established, ask whether it is possible in principle or impossible.
Procedure:
1. Identify the quality.
2. Determine its factual status.
3. For a real quality, assess whether an ordinary cause is apparent.
4. For an imagined quality, assess possibility.
5. Evaluate the elegance and relevance of the invented cause.
This prevents misclassification based only on striking wording or the degree of exaggeration.