大般涅槃經義記 5.322

5.322

別中，應先辯修得義，然後辯文。義有三門：一就生緣以明修得、二就法緣、三就無緣。

Within the specific [explanation], one should first distinguish the meaning of attainment through practice, and then distinguish the text. In meaning there are three approaches: first, clarifying attainment through practice with reference to taking sentient beings as objects; second, with reference to taking dharmas as objects; third, with reference to objectlessness.