《汉书·志·郊祀志下》
建章、未央、长乐宫悬挂钟的木架上和铜人都长出毛，长一寸多，当时认为吉祥。
建章、未央、长乐宫钟虚铜人皆生长，长一寸所，时以为美祥。
The bell frames and bronze figures in Jianzhang, Weiyang, and Changle palaces grew hair over an inch long, which was considered auspicious at the time.