大乘起信論義記 3.263

3.263

治中有二：初明此虛空是妄非真；後「唯一真心」下，明彼法身是真非妄。前中有三：先立、次釋、後結。立中二：先立情有；後體無不實者，立理無。

In the remedy there are two parts: first, clarifying that this empty space is illusory and not real; next, from 'only the One True Mind' downward, clarifying that that dharmakāya is real and not illusory. In the first part there are three: first, establishing; next, explaining; and finally, concluding. In establishing there are two: first, establishing its existence in subjective delusion; next, 'its substance is not real' establishes its non-existence in principle.