瑜伽師地論略纂 7.136

7.136

「依上五因起二十相」者，依初因有六相，依第二因有四相，依第三因有二相，依第四因有五相，依第五因有三相。　初因有六相者：一、微細現行有間、無間隨轉我慢俱行心相，此於定等前方便起，能障現觀作意正達。

As for "giving rise to the twenty aspects based on the above five causes": based on the first cause there are six aspects, based on the second cause there are four aspects, based on the third cause there are two aspects, based on the fourth cause there are five aspects, and based on the fifth cause there are three aspects. As for the first cause having six aspects: first, the subtle active aspect of mind associated with the conceit of "I" that operates with or without interruption, which arises prior to concentration and the like as a preparatory means, and can obstruct the correct penetration through manaskāra in the direct realization.