俱舍論記 1.282

1.282

「頌曰至有情生所依」者，釋。說一切有部傳說：空界以明、闇為體，即顯色差別，體亦是實。論主不信空界實有，故言傳說。理實亦通光、影。光、明為一對，明輕、光重，偏言明者，舉輕以顯重。影、闇為一對，影輕、闇重，偏言闇者，舉重以顯輕。此即影略互顯。然《正理》云「傳說是光、闇」者，此論輕、重互舉，《正理》偏說二重，故不相違。

Regarding "The verse says: [...] the basis for the birth of sentient beings": An explanation. The Sarvāstivādins transmit the tradition that the space element (ākāśa-dhātu) takes light and darkness as its substantial entity, which is a distinction of colour/visible form (varṇa-rūpa), and its substantial entity is also real. The author of the treatise does not believe that the space element is real, hence he says "they transmit the tradition" (paramparā-kathita). In reality, it also extends to radiance and shade. Radiance and light are a pair: light is light, radiance is heavy; singling out light is mentioning the lighter to reveal the heavier. Shade and darkness are a pair: shade is light, darkness is heavy; singling out darkness is mentioning the heavier to reveal the lighter. This is an elliptical reference mutually indicating both. However, when the *Nyāyānusāra* says "tradition says it is radiance and darkness", this treatise mentions light and darkness by cross-pairing the light and heavy, whereas the *Nyāyānusāra* exclusively mentions the two heavier ones; thus there is no contradiction.