《宋书·志·卷十八》
徐爰说： 民间说法蛤本来没有分岔，荀文若戴头巾走路，途中头巾撞上树枝被分成岔，他认为这样倒很好看，便不改变了。 
徐爰曰： 俗说夹本未有歧，荀文若巾之，行触树枝成歧，谓之为善，因而弗改。 
Xu Yuan said: According to folklore, the turban had no bifurcation at first. When Xun Wenruo was walking in a turban, the turban hit the branches of a tree and was divided into branches. He thought it looked good, so he didn't change it.