解开衣服，将背伤给他们看，叛贼相信了他的话。

With that, he doffed his robe and showed them the wounds on his back, so the rebels trusted him.

费请求让他们先进宫去，进宫后把齐候藏了起来，然后出宫和叛贼搏斗，战死在宫门里。

Fei asked to be allowed to go into the palace ahead of them. When he had done so, he concealed the Duke and then emerged once more, this time to attack the rebels. He died fighting at the palace gate.