《左传·昭公·昭公五年》
自从鄢地战役以来，晋国没有丧失防备，而且对楚国礼仪有加，以和睦为重，因此楚国不能报复，而只能请求亲善了。
自鄢以来，晋不失备，而加之以礼，重之以睦，是以楚弗能报而求亲焉。
Since the Battle of Yandi, the Jin State has not lost its defense, and has treated the Chu State with etiquette, emphasizing harmony, so the Chu State cannot retaliate and can only ask for friendship.