《三国志·吴书·周瑜鲁肃吕蒙传》
关羽在返回江陵的路上，多次派人去吕蒙来往消息，吕蒙都厚待关羽派来的人，让他们周游城中，到各家致意问候，或者让家人亲自给军中的将士写信说明情况。
羽还，在道路，数使人与蒙相闻，蒙辄厚遇其使，周游城中，家家致问，或手书示信。
As Guan Yu returned to Jiangling, he repeatedly sent people to deliver messages to Lü Meng, and Lü Meng treated Guan Yu's messengers with great kindness. He allowed them to tour the city, visit their homes, and even had his personal relatives write letters to the soldiers in the army to inform them of their families' situations. 