俱舍論頌疏論本 17.98

17.98

並一切惡趣，北洲無想天者，出報障體。三惡趣全、北洲、無想天是異熟障。問：「此障何法？」答：「謂障聖道及聖道加行（加行者，七方便行也）。」論云：「此三障中，煩惱與業二障皆重，以有此者第二生內亦不可治（解云：於第二生亦不得道，名不可治也）。」又論云：「毘婆沙師作如是釋：由前能引後故，後輕於前（解云：煩惱引業，業引異熟也）。」約異熟果，決定更無餘業餘生能為間隔，故名無間。或造此業必墮地獄，中無間隔，故名無間。

"Along with all bad destinies, Uttarakuru, and the heaven of non-conception" identifies the entity of the retribution obstruction. The whole of the three bad destinies, Uttarakuru, and the heaven of non-conception are fruition obstructions. Question: "What phenomena do these obstruct?" Answer: "They obstruct the noble path and the preparatory practices for the noble path (preparatory practices refers to the seven stages of expedient practice)." The Śāstra states: "Among these three obstructions, both the affliction and karmic obstructions are grave, because one who possesses them cannot be cured even within the second life (explanation: not obtaining the path even in the second life is called 'cannot be cured')." The Śāstra also states: "The Vaibhāṣikas explain it thus: because the former can project the latter, the latter is lighter than the former (explanation: afflictions project karma, and karma projects fruition)." In terms of fruition, there is definitively no other karma or other life that can intervene, hence it is called 'immediate' (ānantarya). Alternatively, committing this karma will inevitably lead to falling into hell without any intermediate interval, hence it is called 'immediate'."