Is “At Xiaoyao Ford, he broke Sun Quan's 100,000-strong army with just 800 men, shaking Hefei.” true?

The Records of the Three Kingdoms, Book of Wei, Biography of Zhang Liao records that Zhang Liao led an 800-strong daredevil squad to assault Sun Quan's main camp, shaking the region east of the Yangtze, so that the children of Eastern Wu dared not cry at night. The original text: 「合肥之役，辽典以步卒八百，破贼十万，自古用兵，未之有也。使贼至今夺气，可谓国之爪牙矣。」(Source: Book of Wei, Biographies of Zhang, Yue, and Zhang, Xu, txt)