俱舍論疏 9.252

9.252

論「如是純言顯唯有行無我我所」，大苦蘊言，顯苦無初無後，故名大也。集言為顯諸苦蘊生，集是生義也。此釋經中云純大苦蘊集。

The treatise says: "In this way, the word 'entire' indicates that there are only conditioned formations without a self or what belongs to a self." The words "great mass of suffering" show that suffering has no beginning and no end, hence it is called "great." The word "origination" is to show the arising of the masses of suffering; origination has the sense of arising. This explains the phrase in the sūtra: "the origination of this entire great mass of suffering."