《左传·僖公·僖公二十八年》
子玉派遣鬬勃向晋国挑战，说： 请和君王的斗士作一次角力游戏，君王靠在车横板上观看，得臣可以陪同君王一起观看了。 
子玉使鬥勃请战，曰： 请与君之士戏，君冯轼而观之，得臣与寓目焉。 
Zi Yu sent Qin Bo to challenge the state of Jin, saying: Please have a wrestling match with the King’s fighter, the King can watch by leaning on the horizontal board of the carriage, De Chen can accompany the King to watch. 