Шмуэль А 24:3 Галаха: Mishneh Torah, Human Dispositions

The disciples of the wise conduct themselves with an abundance of privacy. They should not degrade themselves; and they should not uncover their heads and not their bodies. Even when entering a lavatory he should act decently, not to bare himself before sitting down nor use his right hand to dry himself, and remove himself from every human being and use an inner room, or an inner cave, and if it be behind a trench he should distance himself so that his neighbor will not hear him, and if it be on a plain, distance himself so that his neighbor will not see him; and not talk when voiding even if there be great need. And, in the self-same decent manner he follows by day he should follow by night; but one should train himself to have elimination morning and evening, to avoid the need of distancing himself.⁹Berakot, 62; Horayot, 13; Tamid, 27; Shabbat, 82. C. G.