金剛經纂要刊定記 2.259

2.259

On "the three Kāśyapa brothers and the others": the *Mahāprajñāpāramitopadeśa* says: "At that time, the first, Uruvilvā-Kāśyapa, as the leader in the cave of the fire dragon, taught five hundred disciples. The second, Nadī-Kāśyapa, led three hundred disciples, practicing on Mount Gayāśīrṣa. The third, Gayā-Kāśyapa, led two hundred disciples at the bend of the Nairañjanā River. Together they numbered one thousand people. All were subdued by the World-Honoured One, sought to leave home, and both masters and disciples attained the fruit of arhatship."