《太平广记·卷二百三十二·器玩四》
这段桑木中有奇宝，如果让一个技术非常高的匠人调理它，就能得到这奇宝。
木中有奇宝，若能者断之，必有所得。
There is a treasure in this piece of mulberry wood, and if a highly skilled craftsman were to work on it, the treasure could be obtained.