Note 21 — Chapter XX · KOŚALA AND ŚRÂVASTÎ. THE JETAVANA VIHÂRA AND OTHER MEMORIALS AND LEGENDS OF BUDDHA. SYMPATHY OF THE MONKS WITH THE PILGRIMS.
James Legge translation
21 It is not quite clear whether the author had in mind here Central India as a whole, which I think he had, or only Kośala, the part of it where he then was. In the older teaching, there were only thirty-two sects, but there may have been three subdivisions of each. See Rhys Davids’ ‘Buddhism,’ pp. 98, 99.