俱舍論疏 5.37

5.37

[On] the treatise's: 'Since it is of a wholesome nature ... the entry into the certainty of rightness (samyaktvaniyāma)': sixth, this explains the nature of its retribution to be experienced. Now, examining this: since it is conceded that this absorption may be lost by falling away, and re-attained in the present life, and it is further said that it definitely ripens only in the next lifetime (upapadyavedanīya) and not in subsequent lives (aparaparyāyavedanīya) or indeterminately (aniyata)—according to this, we know that if one previously entered the absorption and was already able to invite the result lasting a full five hundred kalpas, one should not fall away and enter the non-conception [absorption] again, because the number of kalpas is fixed. Or perhaps one may invite the vipāka of the remaining skandhas, or when entering this non-conception absorption repeatedly and inducing that retribution, one enters the retribution to produce the result, or enters the result to produce the retribution.