《太平广记·卷一百七十三·俊辩一》
魏文帝曹丕曾经和弟弟陈思王曹植一同出去游玩，看见两头牛在墙里斗架。一头牛斗不过对方，掉到井里摔死了。
魏文帝尝与陈思王植同辇出游，逢见两牛在墙间斗，一牛不如，坠井而死。
Emperor Wen of Wei, Cao Pi, once went on an outing with his younger brother, Chen Si Wang, Cao Zhi, and they came across two bulls fighting inside a wall. One of the bulls was defeated and fell into a well and died.