《战国策·西周·楚请道于二周之间》
齐国和秦国也都担心楚军夺取周室的九鼎，一定会联合起来救援韩国和魏国去攻打楚军。
齐、秦恐楚之取九鼎也，必救韩、魏而攻楚。
The states of Qi and Qin were also worried that the Chu army would seize the Nine Tripod Cauldrons of the Zhou Dynasty and would definitely unite to rescue the states of Han and Wei to attack the Chu army.