Musāvādasikkhāpada

Vinayapiṭaka · Bhikkhu Vibhaṅga (2) · Vol. 2 · Section 221

[221] One fully ordained (upasampanna), desiring to abuse, desiring to disparage, desiring to humiliate one fully ordained, speaks to one who is low with reference to what is low — to one who is too tall, too short, too dark, or too fair — saying, "You are too tall," "You are too short," "You are too dark," "You are too fair": there is an offense (āpatti) of pācittiya for each and every utterance.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places