俱舍論疏 24.6

24.6

論「頌中但說至故不具說」，釋頌略也。以先說住預流果，後進斷修惑。此類必定成無漏根，故頌不說。

The treatise says, "In the verse it only states... therefore it is not fully stated." This explains why the verse is abbreviated. Because it first spoke of abiding in the fruit of the stream-enterer and then advancing to abandon defilements of cultivation, this class definitely perfects the undefiled faculties; therefore the verse does not state it.