俱舍論記 14.37

14.37

「謂靜慮生至亦恒轉故」者，答。定、道生二是隨心轉，非別解脫。所以者何？此別解脫於惡、無記異心位中及無心位亦恒轉故，所以不名隨心轉戒。此別解脫戒若名隨心轉者，善心起位可名隨轉，惡、無記心起時及無心位彼應斷故。

"Those born of dhyāna [...] because it also operates constantly" answers. The two born of concentration and the path operate in conformity with the mind, whereas prātimokṣa does not. Why is this? Because this prātimokṣa also operates constantly during states of different minds that are unwholesome or indeterminate, and even in mindless states; therefore, it is not called a precept that operates in conformity with the mind. If this prātimokṣa precept were called one that operates in conformity with the mind, it could only be said to follow along when a wholesome mind arises, and would necessarily be severed when an unwholesome or indeterminate mind arises or in mindless states.