Upassayasutta

Suttapiṭaka · Saṁyuttanikāya · Nidānavaggasaṁyutta · Vol. 16 · Section 517

[517] "Friend, one who would think that I, with my six direct knowledges (abhiññā), could be concealed, might as well think that a bull elephant (nāga) seven cubits or seven and a half cubits high could be concealed by a palm leaf." And the bhikkhunī Thullatissā fell away from the holy life (brahmacariya). The Tenth.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 1 other place

Vol. 16 · Section 527 — Cīvarasutta