俱舍論頌疏論本 28.22

28.22

Regarding "The former seven each have three, namely, tainted, pure, and undefiled": in each of the former seven levels there are three: 1. Tainted attainment, which is associated with craving. Craving is able to relish, hence it is called "taste" [or "tainted"]. Because the concentration is associated with that craving, the concentration receives the name "tainted." 2. Pure attainment, which refers to mundane wholesome concentration. Because it arises associated with non-greed and other pure and white dharmas, the concentration receives the name "pure." 3. Undefiled attainment, which refers to supramundane concentration.