《后汉书·列传·左周黄列传》
又左雄前议选举官吏先在公府考试，端门复试，后来尚书张盛奏请废除。
又雄前议举吏先试之于公府，又覆之于端门，后尚书张盛奏除此科。
Zuo Xiong had previously discussed selecting officials by examining them in public offices first and then reexamining them in the Duanmen Gate. Later, minister of works Zhang Sheng memorialized to abolish this.