大乘起信論義記 2.121

2.121

如菩薩地盡，滿足方便一念相應，覺心初起心無初相，以遠離微細念故得見心性，心即常住，名究竟覺。

"When the bodhisattva grounds are exhausted, having fulfilled the expedient means, in one thought of conjunction they awaken to the initial arising of the mind, and the mind is without an initial mark; because they are far removed from subtle thoughts, they are able to see the nature of the mind, and the mind is constantly abiding: this is called ultimate enlightenment."