《周礼·天官冢宰·司裘&内树》
穿丧服、拿凶器的不准入宫，里面暗穿甲衣、拿着盗贼所用伤人器械的人不准入宫，穿奇装异服的人、精神失常的人不准入宫。
丧服、凶器不入宫，潜服、贼器不入宫，奇服、怪民不入宫。
No one is allowed to enter the palace wearing a mourning garment or holding a murderous weapon. No one is allowed to enter the palace secretly wearing armor or holding weapons that thieves use to injure people, wearing strange or gaudy clothes, or behaving like a lunatic.