俱舍論記 22.110

22.110

「為別建立至為集諦體」者，釋第二經。彼契經中為別建立種子及田，說有取識及四識住。明知五蘊皆能為因，故非唯愛為集諦體。

Regarding "In order to distinguish the establishment ... as the entity of the truth of the origin": This explains the second sūtra. In that sūtra, in order to distinguish the establishment of the seed and the field, it speaks of consciousness with grasping and the four stations of consciousness. This clearly shows that the five skandhas are all capable of being causes; therefore, it is not only craving that is the entity of the truth of the origin.