俱舍論記 24.128

24.128

「若唯淨道至亦名沙門果」者，此即第三別明中二果，一來、不還。問及頌答。

"If only the pure path [...] is also named a fruit of asceticism" introduces the third part, which specifically clarifies the middle two fruits, the once-returner and the non-returner. This is the question and the verse answer.