俱舍論頌疏論本 20.47

20.47

無染局隨增者，簡不隨增，故名為局。以無染心非惑相應，不由伴性，名有隨眠。唯局隨增，名有隨眠，謂由隨眠緣無染心，隨眠未斷，名有隨眠。言未斷者，隨增義故，故唯局隨增名有隨眠也。

'An undefiled [mind] is restricted to increasing': it excludes 'not increasing', which is why it is called 'restricted'. Because an undefiled mind is not associated with defilements, it is not called 'possessed of latent defilements' by virtue of the nature of companionship. It is called 'possessed of latent defilements' exclusively restricted to increasing: namely, because latent defilements take the undefiled mind as an object and those latent defilements have not been abandoned, it is called 'possessed of latent defilements'. The word 'unabandoned' conveys the meaning of increasing; therefore, it is exclusively restricted to increasing that it is called 'possessed of latent defilements'.