俱舍論疏 9.248

9.248

論「於前四種至所謂欲貪」，正釋取體。前四取是所取、貪是能取，故引經說取是欲貪。此謂於四取上起貪欲也，非謂唯欲界貪。又此中意唯取欲貪，不同有部兼同時蘊。

The treatise says: "Regarding the aforementioned four kinds ... which is desire and attachment." This directly explains the substantial entity of grasping. The former four graspings are the objects grasped, while attachment is the active grasper; hence it cites the sūtra stating that grasping is desire and attachment. This means giving rise to desire and attachment toward the four graspings, not that it is exclusively attachment in the desire realm. Furthermore, the intent here is strictly to take desire and attachment, unlike the Sarvāstivāda school which concurrently includes the simultaneous aggregates.