維摩義記 3.70

3.70

問曰：見中是斷十使，以何義故偏說此三？如《涅槃》釋：此三重故。所以偏說。又見道中雖斷十使，五見及疑見道中盡，與其斷名；貪瞋癡慢見中不盡，不與斷稱。就所斷中，三本、三隨。身見是本、邊見是隨，戒取是本、見取是隨，疑心是本、邪見是隨。經中就本，為是偏說斷二結矣，以斷三結故說三淨。

Question: In the path of seeing, one severs the ten fetters; for what reason are only these three mentioned? Answer: As the Nirvāṇa [Sūtra] explains: because these three are weighty. Therefore they are specifically mentioned. Moreover, although one severs the ten fetters in the path of seeing, the five views and doubt are completely exhausted in the path of seeing and are given the designation of being severed; desire, ill-will, ignorance, and conceit are not exhausted in the path of seeing, and are not designated as severed. Among those that are severed, there are three roots and three subordinates. The view of self is the root, and the extreme view is subordinate; attachment to rules and rituals is the root, and adherence to views is subordinate; doubt is the root, and wrong view is subordinate. The sūtra relies on the roots, and for this reason only mentions severing the [three] fetters; because of severing the three fetters, it speaks of the three purifications.