《后汉书·列传·东夷列传》
他们渡海往来，让一个人不梳妆，不洗沐，不吃肉，不近女色，称之为 持衰 。
行来度海，令一人不栉沐，不食肉，不近妇人，名曰 持衰 。
 When they crossed the sea over there, they required one person to not comb their hair, bathe, eat meat or have any sexual relations, called chizui.