大乘起信論裂網疏 3.89

3.89

不覺一法界者，始從信地、觀察地行至淨心地，能少分離，入如來地方得永盡。

"As for non-enlightenment toward the one dharmadhātu: beginning from the stage of faith and proceeding through the practice of the stage of observation to the stage of pure mind, one can leave it in small part, and only upon entering the Tathāgata stage is it permanently eradicated."