瑜伽論記 4.351

4.351

謂得諦現預流果向方便道中所有修定者，預流果向謂真見道及相見道，前十五心皆名分別慧，為得此故煖頂忍世第一法加行道中所有修定為此修體，唯是漏為性。

Regarding "namely, all cultivations of concentration in the preparatory path for directly realizing the truth and approaching the fruit of the stream-enterer": 'approaching the fruit of the stream-enterer' refers to the true path of seeing and the path of seeing with marks, where the preceding fifteen moments of mind are all called discriminative wisdom. In order to attain this, all cultivations of concentration within the preparatory path of warmth, summit, patience, and supreme mundane dharmas constitute the essential nature of this cultivation, which is exclusively tainted in nature.