Is “Passing five passes and slaying six generals, and releasing Cao Cao at Huarong Road” true?

novel invention

The Records of the Three Kingdoms, Book of Shu, Biography of Guan Yu records that when he left Cao Cao to return to Liu Bei, Cao Cao did not stop him; the geography of passing five passes is contradictory; the release of Cao Cao at Huarong Road is a fictional invention.

Guan Yu

In official history, he was a famed general of Shu Han who shook the realm, while in the novel he is portrayed as the peerless warrior and paragon of loyalty, the Saintly Emperor Guan.

Other claims about Guan Yu