俱舍論記 24.25

24.25

「言生般者至謂有餘依」者，言生般者，謂欲界沒往於色界，生已不久能起聖道，斷餘煩惱成阿羅漢，便般涅槃。以具勤修、速進二道，故生不久便般涅槃。生已，簡異中般。具二道故，簡異有行、無行。此生般中所說般涅槃者，謂有餘依，後壽命盡方入無餘，故約有餘以釋生般，不據無餘。前中般中所以不別釋涅槃者，相不顯故。下有行等，准生可知，故亦不釋。

Regarding 'That called "one who enters parinirvāṇa upon birth"... means with remainder': 'one who enters parinirvāṇa upon birth' means that one dies in the desire realm and goes toward the form realm, and not long after being born is able to generate the noble path, abandon the remaining defilements, become an arhat, and directly enter parinirvāṇa. Because one possesses both the path of diligent cultivation and the path of swift progress, not long after birth one directly enters parinirvāṇa. 'Having been born' distinguishes this from the intermediate parinirvāṇa. Possessing the two paths distinguishes this from the active and effortless types. What is spoken of here as 'entering parinirvāṇa' in 'one who enters parinirvāṇa upon birth' means with remainder; only later, when the lifespan is exhausted, does one enter [nirvāṇa] without remainder. Therefore, 'one who enters parinirvāṇa upon birth' is explained in terms of [nirvāṇa] with remainder, and not based on [nirvāṇa] without remainder. The reason why nirvāṇa was not specifically explained in the preceding section on intermediate parinirvāṇa is that its characteristic was not conspicuous. The active type and the others below can be understood by analogy with the birth type, so they are not explained either.