俱舍論記 2.89

2.89

「八無礙者至非所長養」者，釋第三、第四句。前後均等名等。流類相似名流，或果續因名流。諸異熟生雖亦從同類起，為顯別相，廢總論別但名異熟。異熟不攝，方名等流。據用，長養亦通無色；此約體說，故無長養。

"The eight unimpeded ones... are not nutriment-increased": this explains the third and fourth lines. Being equal before and after is called 'homogeneous' (niṣyanda). Being of similar category is called 'flow', or the effect continuing the cause is called 'flow'. Although things born of fruition also arise from their homogeneous kind, in order to show their distinctive characteristic, discarding the general to discuss the specific, they are called solely 'fruition' (vipāka). Only that which is not subsumed under fruition is called 'homogeneously-flowing' (naiṣyandika). In terms of function, nutriment-increase also applies to the formless realm; here it is spoken in terms of intrinsic nature, hence they lack nutriment-increase.