成唯識論演祕 5.231

5.231

有義：「欣大菩提」名無足者，且依勝說，理實數數入無漏觀，令觀增明，亦名無足。不爾，定姓無無足故。

An opinion states: 'longing for great bodhi' being called 'unsatisfied' is merely spoken in terms of the superior. In actual principle, repeatedly entering the uncontaminated contemplation to cause the contemplation to become increasingly clear is also called 'unsatisfied'. Otherwise, those of fixed lineage would lack being 'unsatisfied'.