俱舍論疏 24.78

24.78

論「如是雜修至下三靜慮」，明先、後也。先應修彼第四成滿後，方修下三靜慮也。問：由雜修故，有往淨居不還全超、半超等。未知見至亦有此等色不？答：亦有。謂彼先住信解種姓雜修靜慮，然後退失。謂彼懼於後復有退，時便修練根成見至姓。從欲界沒生色界中，乘前後能雜修靜慮，故六種姓皆有上流，然無退生下三定者。

The passage of the treatise starting with "Compounding cultivation thus... the lower three dhyānas" clarifies the prior and posterior. One should first cultivate that fourth [dhyāna] to perfection, and only then cultivate the lower three dhyānas. Question: Due to compounding cultivation, there are non-returners who go to the Pure Abodes (Śuddhāvāsa) by complete transcend-all, partial transcend-all, and so forth. Is it known whether those who attain through vision (dṛṣṭiprāpta) also have these forms? Answer: They also have them. That is, having previously abided in the lineage of resolution through faith (śraddhādhimukta) they compound the cultivation of dhyāna, and then retrogress. Fearing that there might be retrogression again later, they then refine their faculties and accomplish the lineage of attainment through vision. Passing away from the desire realm and being born into the form realm, by means of their earlier and later capacities they compound the cultivation of dhyāna; therefore, all six lineages have those who go upstream, yet none retrogress to be born in the lower three dhyānas.