3. An army of Yu and an army of Tsin extinguished Hia-yang.
4. In autumn, in the ninth month, the Marquis of Tsz’, the Duke of Sung, an officer of Kiang, and an officer of Hwang, made a covenant in Kwan.
5. In winter, in the tenth month, there was no rain.
6. A body of men from Tsu made an incursion into Ching.
Upon the third entry for this year the Tso Chuen enlarges:
Seun Seih, of Tsin, requested leave from the marquis to take his team of Kiuh horses and his peih of Chui-keih jade, and with them borrow a way from Yu to march through it and attack Kwoh. “They are the things I hold most precious,” said the marquis. Seih replied, “But if you get a way through Yu, it is but like placing them in a treasury outside the State for a time.” “There is Kung Che-kí in Yu,” objected the duke. “Kung Che-kí,” returned the other, “is a weak man, and incapable of remonstrating vigorously. And, moreover, from his youth up he has always been with the Duke of Yu, who is so familiar with him that though he should remonstrate the duke will not listen to him.” The marquis accordingly sent Seun Seih to borrow a way through Yu with this message: “Formerly Kí, against right and reason, entered your State from Tien-ling, and attacked the three gates of Ming. It suffered for so doing, all through your grace. Now Kwoh, against right and reason, has been keeping guards about the travellers’ lodges, to make incursions from them into my southern borders, and I venture to beg a right of way from you to ask an account of its offence.” The Duke of Yu granted the request, and even asked to take the lead in invading Kwoh. Kung Che-kí remonstrated with him, but in vain; and he raised his army for the enterprise. In summer, Lí Kih and Seun Seih brought on the army of Tsin, made a junction with that of Yu, and invaded Kwoh, when they extinguished Hia-yang. The army of Yu is mentioned first, because of the bribes which the duke accepted.
The commentary of Kung Yang says on the same paragraph:
Yu was a small State; why is it that it is here made to take precedence of a great one? To make Yu take the lead in the wickedness.
Why is Yu made to take the lead in the wickedness? Yu received the bribes with which those [who were going to] extinguish the State [of Kwoh] borrowed a way through it, and thus brought on its own ruin.