《史记·七十列传·白起王翦列传》
韩、赵两国十分害怕，就派苏代到秦国，献上丰厚的礼物劝说丞相应侯说： 武安君擒杀赵括了吗？ 
韩、赵恐，使苏代厚币说秦相应侯曰： 武安君禽马服子乎？ 
The two countries of Han and Zhao were very afraid, so they sent Su Dai to the Qin state to offer generous gifts to persuade Prime Minister Yinghou: Did King Wuan capture and kill Zhao Kuo?