فالموانع عنده ثلاثة أقسام
On the alternative view, impediments have three categories.
For scholars who reject specification of a legal cause, the classification is:
1. An impediment preventing the cause from beginning.
2. An impediment preventing its completion.
3. An impediment preventing the ruling's continuation.
A separate category blocking the commencement of the ruling after full completion of its cause is not accepted on this analysis. If the effective cause truly becomes complete, the legal effect must follow; the obstacle must instead be understood in an earlier stage.