《晋书·志·第十七章》
清河王司马覃做世子时，所佩带的金铃忽然生出像粟一样的东西，康王母亲疑心不吉祥，毁坏扔掉。
清河王覃为世子时，所佩金铃忽生起如粟者，康王母疑不祥，毁弃之。
When King Sima Tan of Qinghe was the crown prince, the golden bell he wore suddenly grew things like millet. The mother of King Kang suspected it was not auspicious, so she destroyed it and threw it away.