Eḷakalomadhovāpanasikkhāpada

Vinayapiṭaka · Bhikkhu Vibhaṅga (2) · Vol. 2 · Section 112

[112] There is no offence for one who is insane, or for the first offender (ādikammika). The ninth training rule is concluded. _____________ The Tenth Training Rule

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 1 other place

Vol. 2 · Section 511 — Paramparabhojanasikkhāpada