大般涅槃經義記 9.144

9.144

下佛答之。文別有三：一明有斷；二「如人」下，明斷善人有其可救、不可救義；三「如朽敗」下，明所斷善有其可生、不可生義。初中，應先明斷善義，然後釋文。義有十門：一明斷相。斷有三道：一方便道，觀有因果以之為非、觀無因果以之為是。二無礙道，見有為非。三解脫道，見無為是。無礙解脫各有九品，始從下下乃至上上，與彼等智斷結相似。

Below, the Buddha answers him. The text is divided into three parts: first, clarifying that there is severance; second, from "Just as a person..." onward, clarifying that a person who has severed good has both salvable and unsalvable aspects; third, from "Just as a decayed and ruined..." onward, clarifying that the severed good has both arisable and unarisable aspects. In the first part, one should first clarify the meaning of severing good, and then explain the text. The meaning has ten headings: First, clarifying the characteristics of severance. Severance has three paths: first, the preparatory path, contemplating that cause and effect exist and taking this to be wrong, and contemplating that cause and effect do not exist and taking this to be right; second, the unobstructed path, viewing existence as wrong; third, the path of liberation, viewing non-existence as right. The unobstructed path and the path of liberation each have nine grades, starting from the lowest of the low up to the highest of the high, similar to the severance of fetters through conventional knowledge.