俱舍論疏 23.105

23.105

論「順解脫分至順解脫分」，明體性也。在欲界故，非修所成。而由思願攝起身、語，亦得名為順解脫分。勝唯意業，兼取身、語，故以三業為其體性。乃至少分施一食、持一戒等，但深樂涅槃，願力所持故，便名種殖解脫分善。

On the Śāstra's statement: "The factors conducive to liberation ... factors conducive to liberation": this explains their intrinsic nature. Because they belong to the desire realm, they are not brought about by cultivation (*bhāvanāmayī*). Yet because physical and vocal actions are gathered by thought and aspiration, they can also be named as conducive to liberation. The superior is exclusively mental karma, but bodily and vocal are additionally included; therefore the three karmas constitute their intrinsic nature. Down to giving even a minor portion of a single meal or observing a single precept: as long as one deeply delights in nirvāṇa and is sustained by the power of vows, it is called planting the roots of goodness conducive to liberation.