The Tipiṭaka in Three Languages

Soḷasamāṇavakapañhānidadesa

Suttapiṭaka · Khuddakanikāya · Cūḷaniddesa · Vol. 30 · Section 588

[588] Those who in the past declared to me (outside the teaching (sāsana) of Gotama), "Thus it was, thus it will be"— all that is mere hearsay (itihītiha), all that only increases speculation.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 1 other place