成唯識論述記 6.74

6.74

述曰：汝言不拘礙者，若是能不礙名勝解，除心、心所以外法，皆是能不礙，與心、心所為增上緣皆不礙故。若是所不礙，即心、心所皆是所不礙，故言「心等」，等取心所，何但一法！若彼救言：但由勝解增勝力故，發起心等，不為所礙。

The Commentary states: As for what you call 'unobstructed': if that which can refrain from obstructing is called resolve, then all dharmas other than the mind and mental associates are capable of not obstructing, because as dominant conditions (adhipati-pratyaya) for the mind and mental associates, none of them obstruct. If it is that which is unobstructed, then the mind and mental associates are all that which is unobstructed; therefore it says 'the mind, etc.', with 'etc.' including the mental associates—why would it be only a single dharma! If they defend their position by saying: 'It is solely through the superior power of resolve that it gives rise to the mind, etc., so that they are not obstructed.'