大般涅槃經義記 6.112

6.112

下佛答中，「如是如是」印前第一名道、菩提及與涅槃。「道有二」下釋名後難，明其有得。文還有二：一對前難明常而有得、二「道之性相實不生」下對上後難明無相有得。

In the Buddha's answer below, "So it is, so it is" confirms the preceding [statement that] the ultimate is called the Path, bodhi, and nirvāṇa. From "The Path is of two kinds" onward, he resolves the objection regarding the names, explaining that there is attainment. The text also has two parts: First, in response to the preceding objection, it explains that [the Path] is eternal and yet there is attainment; second, from "The nature and marks of the Path are truly neither arising" onward, in response to the second objection above, it explains that it is markless and yet there is attainment.