法華玄論 5.91

5.91

三者《俱舍論》復有部行緣覺。其人自有徒眾部儻，如佛有弟子眷屬，故名部行。此人行行不必具滿百劫，亦可六十劫，如身子時節故也。

The third kind is that in the Abhidharmakośa-bhāṣya there are also gregarious pratyekabuddhas. Such a person has their own congregation and retinue, just as the Buddha has disciples and followers; hence they are named 'gregarious'. This person's practice does not necessarily require a full hundred kalpas; it may also be sixty kalpas, like the time period of Śāriputra.