首楞嚴義疏注經 8.230

8.230

前地於大菩提善得通達，離世間相，得正性離生，破異生性障，證一真法界，故云異性入同。此地對異之同亦不可得，故云同性亦滅。以若見於同，即名為垢。既離對待，故名離垢。又此地證得最勝真如，離邪行障，持戒波羅蜜增勝，性戒所顯名為最勝。以四無量心行廣大十善，得性戒成就，於性重、譏嫌平等無異，亦名異性入同；斷性亦無，方離微細破戒之垢，名同性亦滅，稱離垢地。

In the preceding ground, one skillfully penetrated great bodhi, left worldly characteristics, attained the noble nature free from arising, broke through the obstacle of the nature of ordinary beings, and realized the one true dharmadhātu; hence it says "differentiated nature entering into identity." In this ground, even identity contrasted with difference is unattainable; hence it says "the nature of identity being also extinguished." For if one perceives identity, that is precisely termed defilement. Having transcended dualities, it is therefore named freedom from defilement. Furthermore, this ground realizes supreme tathatā, leaves the obstacle of wrong practice, and śīla-pāramitā becomes predominant; what is manifested by natural morality is named supreme. By practicing the vast ten wholesome actions with the four immeasurable minds, accomplishing natural morality, being equal and without difference regarding natural grave offenses and censured offenses, this is also called "differentiated nature entering into identity"; when the nature of severance is also absent, only then is one free from subtle defilements of breaking precepts, named "the nature of identity being also extinguished," entitled the Ground of Freedom from Defilement.