avastu apohaḥ asādhāraṇaṃ tu vastu na ca avastuvastunoḥ sambandhaḥ yuktaḥ vastudvayādhāratvāt tasya
The apoha is a non-entity while the unique [thing] is an entity, and a relation between a non-entity and an entity is not possible, because a relation must be based on two entities.