Saṅghabhedakakkhandhaka

Vinayapiṭaka · Cūḷavagga (2) · Vol. 7 · Section 337

[337] At that time the Buddha, the Blessed One, was dwelling at Anupiyā — Anupiyā being a market town of the Mallas. Now at that time well-known Sakyan princes, one after another, went forth in imitation of the Blessed One, who had gone forth.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.