Cui Yu 崔禹

In Chapter 82 of the Romance, in the autumn, the 8th month, of the 1st year of Zhangwu (221), Liu Bei raised a great army, reached Kui Pass and halted his carriage at Baidicheng. Sun Huan, having lost many officers and men including Li Yi, Xie Jing and Tan Xiong, was at the end of his strength and asked Wu for help, and the Shu generals Zhang Nan and Feng Xi proposed taking advantage of the weakened Wu army to raid its camp. Wu Ban, worried that Zhu Ran's navy, encamped on the river, might cut off their way back, proposed first disguising a few soldiers as defectors to tell Zhu Ran of the planned raid, and then ambushing Zhu Ran when he came to the rescue on seeing the fires. Romance, Ch. 82 §1 · 31–32

As Zhu Ran was about to go to the rescue of Sun Huan, a few soldiers came aboard his ships to surrender, saying that they were men under Feng Xi who had come over because rewards and punishments were unfair, and that that night Feng Xi would raid Sun Huan's camp with the raising of a fire as the signal. Zhu Ran sent a man to warn Sun Huan, but the messenger was killed on the way by Guan Xing. When Zhu Ran prepared to lead his troops to Sun Huan's rescue, his subordinate general Cui Yu said that the soldiers' words could not be fully trusted, that if anything went wrong both the land and water forces would be finished, and that the general should simply hold the water camp firmly while he went in his place. Zhu Ran followed this advice and had Cui Yu lead 10,000 troops. Romance, Ch. 82 §33–34

That night Feng Xi, Zhang Nan and Wu Ban stormed Sun Huan's camp by three routes, and fires broke out on all sides. Cui Yu, still on the march, saw the fires and hurriedly urged his troops on, but as he rounded a hill, drums thundered from a mountain valley and Guan Xing on the left and Zhang Bao on the right attacked him from both sides. Badly shaken, Cui Yu was about to flee when he ran straight into Zhang Bao, and after crossing horses for a single bout he was taken alive and carried off. Hearing of the danger, Zhu Ran took his ships 50 or 60 li downstream. Romance, Ch. 82 §35–36

While Sun Huan fled with his defeated troops to the city of Yiling and was surrounded there by Wu Ban and the others, Guan Xing, Zhang Bao and the others brought Cui Yu under escort to Zigui. Liu Bei was overjoyed, gave the order to behead Cui Yu and richly rewarded the three armies. The Romance records that from then on his might shook the land, and there was none among the generals south of the Yangtze whose heart did not quail. Romance, Ch. 82 §37