俱舍論疏 6.129

6.129

The treatise says, "Here, the word 'same' [...] should also be understood in this way," which explains having the same basis. Following the meaning of this explanation, having the same basis means that mind and mental factors share a single basis; the object-support is also like this. Someone explained the earlier 'same basis and same object-support' by saying: 'Although there are two bases, it is spoken of relying on only one; although there are multiple object-supports, it is spoken of provisionally relying on only one'—this contradicts this text. However, the verse merely says 'same basis', the meaning of which is broad; according to the prose explanation, it means the same moment (kṣaṇa). Within having the same moment, there are again two kinds: first, definite identity of basis; second, simultaneous manifestation. As for definite identity of basis, for example, the eye in a single moment universally serves as a basis for consciousnesses of the three natures; within defiled consciousness, it universally serves as a basis for greed, anger, and so forth. Yet although these phenomena share the same basis, they are not associated. Therefore we know that even if they share the eye faculty of a single moment as a basis, it is still not the meaning of association; they must manifest simultaneously in the same moment to be associated. Therefore, the prose explanation says: "Namely, if eye-consciousness uses the eye faculty of this moment as a basis, the associated sensation and so forth" also use this eye faculty as a basis; this is said in terms of manifesting in a moment to serve as a basis. Based on this principle, a fourfold proposition should be made: there are those that have the same basis but not the same time, etc., referring to consciousnesses of the three natures having a fixed basis in the same faculty, while their times of arising differ and their objects are unfixed. Second, those whose times of arising, objects, etc., are the same, yet their bases are different, like many people looking at the moon, etc. The [both and neither] clauses can be understood.