俱舍論記 6.248

6.248

「有等流果至不應更與」者，答。因至現在，有等流果無間相續，至生相時即現與果。若果至現，因便過去，名已與果，不應更與。

Regarding 'There is a fruit of uniform outflow [...] should not give it again': An answer. When the cause reaches the present, there is a fruit of uniform outflow in uninterrupted succession; when it reaches the phase of arising, it then gives its fruit in the present. If the fruit reaches the present, the cause then passes into the past and is called having already given its fruit, and should not give it again.