《资治通鉴·汉纪·汉纪四》
她又派使者去召赵王刘如意，使者三次往返，赵相周昌对使者说： 高帝生前把赵王嘱托给我，赵王年纪小，我听说吕太后怨恨戚夫人，想把赵王召去一齐杀掉，我不敢让赵王去。
遣使召赵王如意。使者三反，赵相周昌谓使者曰： 高帝属臣赵王，赵王年少，窃闻太后怨戚夫人，欲召赵王并诛之，臣不敢遣王。
She also sent a messenger to summon King of Zhao, Liu Ruyi. The messenger made three round trips. Zhao Prime Minister Zhou Chang told the messenger: "The late Emperor Gao entrusted King Zhao to me before he died. King Zhao is young. I heard that Empress Lü resents Lady Qi and wants to summon King Zhao in order to kill them together. I dare not let King Zhao go."