俱舍論記 13.21

13.21

「論曰至名身表業」者，釋第一句。述說一切有部顯自師宗，故前頌說身表許別形。毛、髮等聚總名為身，身形非一，故言如是如是。於此身中由思力故，別起如是如是身形，能表示心，名身表業。

[On the passage] "The treatise says: […] is called bodily vijñapti-karma": This explains the first line. In stating the Sarvāstivāda view to show the doctrine of his own teacher, the preceding verse says that bodily vijñapti is accepted as a distinct shape. The collection of hair, pores, and so forth is collectively called the body; the shapes of the body are not one, hence it says "such and such". In this body, due to the power of intention (cetanā), such and such distinct bodily shapes arise, which can manifest the mind; this is called bodily vijñapti-karma.