俱舍論疏 6.118

6.118

論「如是諸法至除前劣故」，就同地中，聞、思、修惠復分九品，與等、勝為因也。

The treatise says, "Such phenomena [...] excluding the preceding inferior," which means that within the same level, wisdom arisen from hearing, reflection, and cultivation is further divided into nine grades, serving as causes for the equal and superior.