瑜伽師地論略纂 2.103

2.103

滋長具中，「無尋思」等者，謂受數無有尋伺，無所學習，任運得之，但欲令身長養調適攝受名受故。

Regarding 'without vitarka' and so forth among the articles of nourishment: it means that the mental factor of feeling has no vitarka or vicāra, involves no learning, and is obtained spontaneously; it is merely called 'feeling' because of the desire to nurture, adjust, and sustain the body.