《史记·十二本纪·殷本纪》
那时候，国都亳有桑树和楮树合生在朝堂上的怪异现象，一夜之间就长得有双手合抱那么粗。
亳有祥桑谷共生於朝，一暮大拱。
At that time, it was mysterious that silk trees and paper mulberry trees grew together in the court of the capital city Bo, and a tree grew to the thickness of two hands clasped together overnight.