Zhuge Liang inspected the unreality of Nan'an County, returned to Dazhai, raised the tent that night, summoned Wei Yan, Guan Xing, and Zhang Bao to him, and gave him a soft command. And commanded a general to do so, so and so. The crowd was commanded to do as they pleased.
The next day, Zhuge Liang no longer attacked the city, but only sent his soldiers to bring some firewood and grass, piled them under the city wall, and said that he would burn Nan'an. Wei Bing didn't know what the plan was, saw that there was not much firewood and grass, and was not afraid at all.
Anding Taishou Cui Yu heard that the Shu soldiers surrounded Nan'an and trapped Xiahou Shu, and later saw that Nan'an was on fire every night, as if it was a distress signal, and he was shocked and suspicious. However, because there were only a few thousand men and horses under his command, he did not dare to go forward to meet them.
One day, suddenly a man came galloping on horseback, claiming that Pei Xu, a close general under Xiahou Shu, had a confidential matter to see Taishou. Cui forgives the news and rushes out to meet kaicheng.
Cui Yu didn't quite believe it yet, but it depended on the Du Dou Document. That Pei Xu took out a document, Cui Qiong hurriedly read it, and sure enough, it was a sealed urgent document.
The people who came said that they were going to Tianshui for help, so they retrieved the documents and urged the horse out of the city and went to Tianshui.