瑜伽師地論略纂 15.58

15.58

論云「顯於內門受用境等義故，建立六根；顯外門受用義，立二根」者，謂眼等六根不假他人為緣，自受用境，名內門；二根藉他用境界，名門。「顯了有情功德、過失義，立八根」者，謂三無漏、信等五中是解脫分，是功德；信等五是福分，有漏者是過失。又功德，謂八根；過失者，謂八根所斷。

The treatise says: 'To reveal the meaning of experiencing objects through internal doors, six faculties are established; to reveal the meaning of experiencing through external doors, two faculties are established': this means that the six faculties of the eye, etc., do not rely on another person as a condition, but self-experience objects, which is called internal doors; the two faculties [of masculinity and femininity] rely on another to make use of objects, which is called doors. 'To clearly reveal the meaning of sentient beings' merits and faults, eight faculties are established': this means that the three undefiled ones, and among the five [faculties] of faith, etc., are the aids to liberation (mokṣabhāgīya), which are merits; the five [faculties] of faith, etc., are the aids to merit (puṇyabhāgīya), and the defiled ones are faults. Alternatively, merits refers to the eight faculties; faults refers to what is severed by the eight faculties.