大乘起信論義記 2.60

2.60

○廣釋中先空，內有三：初略明離染，非略能盡故；次廣釋，非廣能周故；後總結。

In the extensive explanation, emptiness comes first, which has three parts internally: first, briefly clarifying freedom from defilement, which cannot be exhausted by brevity; next, an extensive explanation, which cannot be comprehensive through extensiveness; finally, a general conclusion.