《史记·三十世家·燕召公世家》
齐王于是命令章子率领五都的军队，并且偕同北方边境的士卒，一起讨伐燕国。
王因令章子将五都之兵，以因北地之众以伐燕。
The Qi King then ordered the Prince Zhang to led the troops from the five capitals, and to work together with the soldiers from the north border to attack the Yan state.