《太平广记·卷四百六十八·水族五》
现在人们煮龟仍大多使用桑树作烧柴。老百姓因此把龟叫作 元绪 。王素
今烹龟犹多用桑薪，野人故呼龟为元绪也。王素
Nowadays, most people still use mulberry trees as firewood to cook tortoises. The common people therefore call the tortoise Yuanxu. Wang Su