Tuvaṭṭavagga

Vinayapiṭaka · Parivāra · Vol. 8 · Section 705

[705] Two bhikkhunīs (bhikkhunī) lying down together on a single bed commit two offenses: while lying down, there is an offense of wrong-doing (dukkaṭa) in the act; when they have lain down, there is an offense entailing expiation (pācittiya).

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.