Bīraṇatthaṁbhakavagga

Suttapiṭaka · Khuddakanikāya · Jātaka (1) · Vol. 27 · Section 271

[271] Constantly heedful, he practised exertion (yogga) for a year at Bīraṇatthambhaka; having entered the assembly, he declared final knowledge (aññā) — regimen (niyyama) does not protect one of little wisdom.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.