法華義疏 5.140

5.140

「舍利弗！華光佛壽」下，第六、壽命果。除為王子未作佛時者，如釋迦佛若道俗合論則年八十，若論佛壽但有五十，今亦然也。

From “Śāriputra, the lifespan of Padmaprabha Buddha” onwards is sixth: the fruit of the lifespan. Excluding the time when he was a prince and had not yet become a Buddha: just as with Śākyamuni Buddha, if the secular and religious phases are treated together, his years were eighty, but if one speaks only of his lifespan as a Buddha, it was only fifty; here it is also like this.