《左传·文公·文公二年》
使展禽居于下位，设立六个关口，小老婆织席贩卖，这是三件不仁爱的事情。
下展禽，废六关，妾织蒲，三不仁也。
Making 展禽居 occupy a subordinate position, establishing six barriers, his concubine wove mats to sell, these were the three unbenevolent things.