俱舍論疏 8.192

8.192

論「由至界位至故有三品」，第二師釋。《七善士趣契經》中說中般分三，壽量中間總有三位：一染想未生名至界位。界是因種之異名也，種未起時名為至界。《正理論》云「有種未行名為至界，此是利根。」此即第一中般。「或想位」者，是次後時染想生時。《正理》云「彼想初行說名想位，此是中根。」是第二中般。「或尋位」者，《正理論》云「由煩惱力，令心於境種種尋求，說名尋位，此鈍根者。」此第三中般也。

On the passage in the śāstra from "Due to reaching the stage of the realm" to "therefore there are three grades": This is the second master's explanation. In the Sūtra on the Destinations of the Seven Virtuous Persons, one who enters nirvāṇa in the intermediate state is divided into three, with three stages in total during the middle of the lifespan: first, before defiled ideation arises, it is called the stage of reaching the realm. "Realm" (dhātu) is another name for the causal seed; when the seed has not yet arisen, it is called reaching the realm. The Nyāyānusāra says: "When the seed has not yet become active, it is called reaching the realm; this is one of keen faculties." This is the first type of one who enters nirvāṇa in the intermediate state. "Or the stage of ideation": this is the subsequent time when defiled ideation arises. The Nyāyānusāra says: "When that ideation first becomes active, it is called the stage of ideation; this is one of medium faculties." This is the second type of one who enters nirvāṇa in the intermediate state. "Or the stage of investigation": the Nyāyānusāra says: "Through the force of afflictions, the mind engages in various investigations regarding objects; this is called the stage of investigation; this is one of dull faculties." This is the third type of one who enters nirvāṇa in the intermediate state.