Guan Ru bu said that Eastern Wu was going to kill a general, and Western Shu would have soldiers invading the border. At this time, someone from Hefei came to report that Eastern WuLu had died. Cao Cao was horrified, so he sent someone to Hanzhong to listen to the news. Within a few days, a detective Ma Fei reported that Liu Bei had sent Zhang Fei and Ma Chaobing to identify them to take the pass.
Cao Cao was furious, so he wanted to personally lead the soldiers into Hanzhong, and ordered Guan Rubu to calculate the fierce luck of the troops.
Guan Ru replied, "The Great King must not be rash, there will be a fire in the spring." Cao Cao saw that Guan Ren had repeatedly predicted the spiritual experience, and he did not dare to act rashly again.
Cao Cao decided to stay in Yi Commandery himself, sending Cao Hong to lead 50,000 troops to help Xiahou Yuan and Zhang Gao to defend Dongchuan; he also sent Xiahou Huan to lead 30,000 troops to patrol the xu capital in case of danger; and the patriarch Shi Wangbi was the governor of Yulin Army.
Sima Yi, the chief bookkeeper, said: "The king will be addicted to alcohol and has a loose temperament, and I am afraid that he will not be worthy of this position." Cao Cao disagreed: "Wang Must be a man who followed me when I was chopping thorns and thorns through difficulties, loyal and diligent, with a heart like iron stone, and fully capable of doing so." ”
So Cao Cao appointed Wang Bi to take charge of the Yulin Army and Horses, stationed outside Xu Duhua's gate.