《汉书·传·西南夷两粤朝鲜传》
左将军多次与楼船将军约定攻城的时间，而楼船将军则想尽快实现他与朝鲜大臣约定的事情，因此总是不与左将军会师。
左将军数与楼船期战，楼船欲就其约，不会。
The Left-hand General had made several appointments with the General of the Tower Ships to coordinate the timing of the siege, but the latter, eager to fulfill the agreement he had made to the Korean minister, consistently failed to meet with the Left-hand General.