四分律比丘含注戒本 2.531

2.531

If he exceeds [the limit] in bathing, whether the whole body or half the body, it is in both cases a prāyaścittika; if he undertakes preparations and then desists, it is a duṣkṛta. There is no offence: if one bathes frequently according to the permissible circumstances above, or if someone forces him by superior strength to bathe.