Yes, but only if necessary. Many rabbits and small rodents are very stressed in the bathroom and therefore we must avoid it, to keep it calm.
For everyday life, if it gets dirty you can clean it with baby wipes. But in case you need a bath if or yes, you should do it with special rodent soap that respects your natural PH. It is also recommended that you avoid your head to avoid swallowing water or water entering your ears since it could make you sick.