大乘起信論義記 2.273

2.273

○第三結依心中有二：先正結屬心；後「此義云何」下，釋疑廣辨。初中先順結三界，後返結六塵。

In the third [part], concluding by attributing [all] to the mind, there are two [sections]: first, directly concluding by attributing to the mind; next, from "What does this mean?" below, resolving doubts and extensively explaining. In the first, it first directly concludes the three realms, and then inversely concludes the six dusts.