俱舍論疏 8.193

8.193

論「或取色界至是名第一」，此是第二師異釋也。《七善士趣經》中般分三，此是第一中般也。即是從生色界天中，趣向本法會天，中間時有近遠，以前後不同。第一人生天未趣，即般涅槃。

On the passage in the śāstra from "Or setting out toward the form realm" to "this is the first": This is an alternative explanation by the second master. In the Sūtra on the Destinations of the Seven Virtuous Persons, one who enters nirvāṇa in the intermediate state is divided into three, and this is the first type. That is, from being born among the gods of the form realm, heading toward their heaven of the assembly of the Dharma, the time in between may be near or far, differing according to earlier and later. The first person, having been born in heaven and before setting out, immediately enters parinirvāṇa.