Sahadhammamikavagga

Vinayapiṭaka · Parivāra · Vol. 8 · Section 364

[364] A bhikkhu who, angered and displeased, gives a blow commits two offenses (āpatti): while he is striking, in the act itself there is an offense of wrong-doing (dukkaṭa); when the blow has been given, there is an offense entailing expiation (pācittiya).

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 1 other place

Vol. 8 · Section 307 — Bhūtagāmavagga