俱舍論疏 2.9

2.9

論「所緣有對至於自所緣」，第三釋所緣有對也。心、心所法於自所緣和會被礙，名所緣有對。

The treatise says: "[Phenomena that have] cognitive opposition [are those that are obstructed from occurring elsewhere than] with respect to their own cognitive object (ālambana)." This is the third [section], which explains cognitive opposition (ālambana-pratighāta). Mind and mental concomitants, having converged on their own cognitive object, are obstructed [from other objects]; this is called cognitive opposition.