俱舍論頌疏論本 29.20

29.20

四境類品道，自上苦集滅者，四無色解脫各緣自地、上地苦、集、滅諦，及緣九地類智品道為所緣境。

"Four have the category of subsequent [cognition] as their path, taking suffering, origination, and cessation of their own and higher [levels as their object]": the four immaterial liberations each take the truths of suffering, origination, and cessation of their own level and higher levels, as well as the path belonging to the category of subsequent cognition of the nine levels, as their objective sphere.