俱舍論疏 12.181

12.181

論「又如何知衣分異縷」，此中又破有衣分也。世所現見，一縷之上但見其縷，不見衣分。又如何知衣分異縷，非即以縷為衣分耶？

The treatise says: "Furthermore, how is it known that the parts of cloth are distinct from the threads?" Here he also refutes the existence of parts of cloth: As seen in the world, on a single thread one only sees that thread, not a part of cloth. Furthermore, how is it known that the parts of cloth are distinct from the threads, rather than the threads themselves being the parts of cloth?