摩訶止觀 9.10

9.10

十六特勝、通明，佛不出世，利根凡夫亦修此禪，而不發無漏；如來若說，亦發無漏。比於餘禪，其力雖弱，交勝根本。為是義故稱「亦有漏亦無漏」。

Regarding the sixteen superior excellences and total brightness: when a Buddha does not appear in the world, sharp-rooted ordinary people also cultivate these dhyānas, yet do not generate the untainted; if the Tathāgata expounds them, they also generate the untainted. Compared to the other dhyānas, although their power is weak, they are notably superior to the fundamental [dhyānas]. For this reason, they are called 'both tainted and untainted.'