《魏书·列传·卷四十三》
《礼》： 初遭丧，男子免冠，这时妇人则结丧髻；男子戴帽，则妇人插笄。 
《礼》：初遭丧，男子免，时则妇人髽；男子冠，时则妇人笄。
Book of Rites: When one first goes into mourning, men remove their hats, and women at this time tie their hair up into a mourning bun; men wear hats, and women insert hairpins.