瑜伽論記 9.81

9.81

言從所知障乃至所行真實者，斷所知障得彼二智，二智境界名所知障淨智所行真實。

The statement, "from the obstruction to knowables up to the reality of the domain of activity," means that through severing the obstruction to knowables, one attains those two knowledges; the domain of these two knowledges is called the reality that is the domain of knowledge purified of the obstruction to knowables.