大毘盧遮那成佛經疏 16.3

16.3

次答果數壽量幾時者，然世間之尊所有真言勢力，極上不過一劫。佛所說者則逾一劫數，謂逾一劫復逾一劫，如此無量乃至成佛也。是故世人所護悉地壽量及果，則有數限不逾一劫。今則不失，壽量無盡，過於一劫數之量也。若事中釋者，但隨力能過若干劫，或過無量劫壽量不盡，亦是過彼世天也。故云超劫者，是通含不定之語也。剋實而談壽量，出過劫數受報亦無限量也。

Next, in answering how many kalpas the fruit numbers and the lifespan last: the power of all mantras of worldly deities does not exceed one kalpa at most. Those spoken by the Buddha exceed the measure of a kalpa, meaning exceeding one kalpa, and exceeding another kalpa, thus immeasurably up until attaining buddhahood. Therefore, the lifespan and fruits of the siddhi maintained by worldly people have a numerical limit not exceeding one kalpa. Now, [the Buddha's] is not lost, its lifespan is inexhaustible, exceeding the measure of the count of kalpas. If explained in terms of phenomenal practice, merely according to one's capacity one can exceed a certain number of kalpas, or exceed immeasurable kalpas with an inexhaustible lifespan, also surpassing those worldly devas. Therefore, saying "transcending kalpas" is a comprehensive and indefinite phrasing. To speak strictly of the reality of the lifespan: it surpasses the count of kalpas, and the retribution received is also without limit.