The Tipiṭaka in Three Languages

Sekhiyakaṇḍa

Vinayapiṭaka · Parivāra · Vol. 8 · Section 456

[456] Out of disrespect (anādariya), one who, while standing, teaches the Dhamma to a person who is seated commits one offense: a dukkaṭa.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places