Omasavādasikkhāpada

Vinayapiṭaka · Bhikkhu Vibhaṅga (2) · Vol. 2 · Section 258

[258] A fully ordained one (upasampanna), having heard it from a fully ordained one, conveys slander (pesuñña) to a fully ordained one, saying: "So-and-so says of you, 'a khattiya,' 'a brāhmaṇa'" — there is an offense of pācittiya for each utterance.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places