Note 12 — Chapter XXXI · GAYA. SAKYAMUNI’S ATTAINING TO THE BUDDHASHIP; AND OTHER LEGENDS.
James Legge translation
(12) These must not be confounded with Mahakasyapa of chap. xvi, note 17. They were three brothers, Uruvilva, Gaya, and Nadi-Kasyapa, up to this time holders of “erroneous” views, having 500, 300, and 200 disciples respectively. They became distinguished followers of Sâkyamuni; and are—each of them—to become Buddha by-and-by. See the Nidana Katha, pp. 114, 115.