俱舍論頌疏論本 6.33

6.33

釋曰：相應因者，心、心所法要須同依方名相應，故言決定。謂同依言，即顯必同所依、同所緣、同行相、同時、同事，五義具足，名為相應。論云：「此中同言顯所依一，謂若眼識，用此剎那眼根為依，相應受等亦即用此眼根為依，乃至意識及相應法同依意根，應知亦爾。」解云：心與心所所依不異，名為一也。

The explanation says: As for the associated cause, the mind and mental factors must necessarily have the same support (āśraya) before they are called associated; therefore it says "is definite." The words "same support" show that they must have the same support (āśraya), the same object of apprehension (ālambana), the same aspect (ākāra), the same time (kāla), and the same operation (dravya); when these five characteristics are complete, they are called associated. The treatise says: "Here, the word 'same' indicates that the support is one. That is, if it is visual consciousness, using the eye faculty of this moment as support, the associated feeling and so forth also use this very eye faculty as support; up to: mental consciousness and its associated phenomena having the same support in the mental faculty—it should be known that it is also thus." The explanation says: Mind and mental factors having supports that are not different is what is called "one."