唯識二十論述記 2.114

2.114

述曰：此廣前難。此中四句，上半顯「聚不異」，下半明「無二」。謂若汝宗所說聚色不異汝執一實極微，其影及障應屬極微，不屬聚色，聚色體即是極微故。比量如前。《成唯識》中亦作是說：既和合物即其極微發影、障等，故知極微定有方分。

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.