成唯識論述記 6.213

6.213

述曰：下廣前難有三：初解依處；次解業用；後解自性。初中又二：先標；後釋，此初也。

The Commentary states: Below, the expansion upon the previous inquiry has three parts: first, explaining the basis; next, explaining the functional activity; and finally, explaining the intrinsic nature. In the first part, there are again two sections: first, presenting [the types]; then, explaining them. This is the first.