大般涅槃經集解 10.33

10.33

案僧亮曰：真身如是，不可思議。或謂真不可議，應是可議，故曰應即是真常，不可議也。僧宗曰：三乘十地不能量也。

Sengliang comments: The true body is like this, inconceivable. Some might think that while the true is inconceivable, the responsive is conceivable; hence it says the responsive is precisely the true and permanent, and is inconceivable. Sengzong says: The three vehicles and the ten stages cannot fathom it.