金剛經纂要刊定記 7.151

7.151

"This perception, etc.": this means that the perceiving aspect and the perceived aspect have the self-authenticating aspect as their essence. However, these three phenomena are the own-nature of saṃsāra, from which all saṃsāra arises; therefore, these three are called the root, and this applies generally to the eight consciousnesses.