俱舍論記 12.45

12.45

「部行獨覺至轉名獨勝」者，釋部行獨覺。由眾部相隨，名為部行。離教自悟，名為獨覺。部行獨覺先是聲聞前三果人，後得第四勝果之時，離教獨證勝果，轉名獨勝。又解：先是聲聞初果，後得後三勝果時，離教獨悟勝果，轉名獨勝。前解為勝。

"Regarding 'The group-dwelling pratyekabuddhas [...] shift to being called solitary conquerors': this explains the group-dwelling pratyekabuddha. Because they follow along with a group, they are called 'group-dwelling.' Because they awaken on their own without teaching, they are called 'pratyekabuddha.' A group-dwelling pratyekabuddha was previously a person at one of the first three fruits of a śrāvaka; later, when attaining the fourth superior fruit, they independently realize the superior fruit without teaching, shifting to being called a 'solitary conqueror.' Another explanation says: they were previously at the first fruit of a śrāvaka; later, when attaining the three subsequent superior fruits, they independently awaken to the superior fruits without teaching, shifting to being called a 'solitary conqueror.' The former explanation is superior.