瑜伽師地論略纂 6.103

6.103

增七，合十五門。「念通二品」者，前有因有具聖正三摩地中，念是定分；今通二者，修生於定，念隨定增，明記止觀，理通定慧。

The 'sets of seven' comprise fifteen categories in all. Regarding 'mindfulness pertains to both categories': earlier, in the noble right samādhi with its causes and requisites, mindfulness is a part of concentration; now, pertaining to both, cultivation generates concentration, mindfulness increases in accordance with concentration, and clearly remembering calming and insight in principle pertains to both concentration and wisdom.