金光明經文句記 4.116

4.116

初、約開辨數。開色為十者，五根、五塵也。少分者，法入攝二種法：一者心法，除心王，但取相應諸心數也；二者非心法，即過去未來色法，及心不相應諸行，及三無為法也。今云少分，即非心法中過未色也。開心為二者，謂意入也，及法入也。然於法入亦秖少分，謂於法入二種中但攝心法耳。今云二者，且舉全數。

First, distinguishing their numbers in terms of unfolding. Unfolding form into ten refers to the five faculties and the five sense objects. A "small portion": the dharma base subsumes two kinds of dharmas: first, mental dharmas, excluding the primary mind and taking only the associated mental factors; second, non-mental dharmas, namely past and future form dharmas, the dharmas non-associated with mind, and the three unconditioned dharmas. What is here called a "small portion" is past and future form among the non-mental dharmas. Unfolding mind into two refers to the mind base and the dharma base. However, in the dharma base it is also only a small portion, meaning that between the two kinds in the dharma base it subsumes only mental dharmas. Saying "two" here is just citing the full count for the time being.