《战国策·韩一·韩公仲谓向寿》
使者通答说： 甘茂答应公仲归还韩国的武遂，让宜阳的百姓返回家圈，如今您平自收回武遂，想同韩国和好很难啊。 
对曰： 甘茂许公仲以武遂，反宜阳之民，今公徒令收之，甚难。 
The envoy answered, "Gan Mao promised Gongzhong to return Wusu to South Korea and allow the people of Yiyang to leave the cities to go home, but now you have forced recovery of Wusu yourself. It will be very difficult to make peace with South Korea."