瑜伽師地論略纂 6.6

6.6

第四、分別靜慮經中，文有四：一、引經標；二、略釋四轉；三、廣釋相；四、結成。　「此中四轉，當知二時顛倒」等者，四轉者：一、有漏三摩地趣進時顛倒；二、有漏定趣退時顛倒；三、有漏定正退失無倒；四、無漏定正進時無倒。或初二於進謂退，名為顛倒。初於有漏定進時謂退，後於無漏定進時謂退，故皆名倒。論說第二。

In the fourth, the Sūtra on Distinguishing the Dhyānas, the text has four parts: first, citing the sūtra to state [the topic]; second, briefly explaining the four transitions; third, extensively explaining the marks; fourth, concluding. Regarding "Among these four transitions, one should know that at two times there is error": the four transitions are: first, error at the time of advancing in defiled samādhi; second, error at the time of heading toward regression in defiled concentration; third, non-error when actually regressing from defiled concentration; fourth, non-error when actually advancing in undefiled concentration. Alternatively, the first two take advancing to be regression, which is called error. The first takes advancing in defiled concentration to be regression; the second takes advancing in undefiled concentration to be regression; hence both are called error. The treatise states the second.