Suppose someone argues: 'The original case has a ruling, so a similar new case should share it.' Before accepting the inference, ask:
1. Does the new case have its own applicable text?
2. Would the proposed outcome directly contradict a text?
3. Would it change the original textual ruling?
4. Is the original rule supported by an intelligible transferable cause?
5. Is that cause legally established, rather than merely verbal or superficial?
Even after these checks, one must verify that the cause truly occurs in the new case. Sound qiyas has both logical structure and legal foundation.