唯識二十論述記 2.114

2.114

Commentary: This expands the previous objection. Within these four lines, the first half clarifies "the aggregate is not different", and the second half clarifies "neither exists." That is, if the aggregated form stated in your school is not different from the single real paramāṇu you hold, its shadow and obstruction should belong to paramāṇus and not belong to aggregated form, because the substance of aggregated form is precisely paramāṇus. The formal inference is as before. In the Cheng weishi lun it is also stated like this: since the aggregated entity is precisely those paramāṇus which cast shadows, obstruct, and so on, we know that paramāṇus definitely have spatial divisions.