ثم هذا النوع من الإجماع لا يبقى حجة بعد ظهور الفساد في أحد المأخذين.
This type of consensus does not retain the same authority once a flaw is revealed in one of its underlying grounds.
In the vomiting-and-contact example, if the reason used by one jurist is shown to be inapplicable, that jurist may no longer reach the earlier result for the compound case. The common conclusion was contingent upon separate legal causes.
This does not deny the authority of every consensus. The qualification concerns precisely this composite agreement, where different reasons supported one apparent outcome.