大乘起信論裂網疏 2.86

2.86

三、真實不空離障大義，如虛空明鏡。謂煩惱、所知二障永斷，和合識滅，本性清淨，常安住故。

Third, the great meaning of genuine non-emptiness free from hindrances, like space and a bright mirror. That is to say, the two hindrances of afflictions and the knowable are eternally severed, the combining consciousness ceases, and the original nature is pure and permanently abides.