《资治通鉴·汉纪·汉纪二十二》
又如，王凤明知他小妾的妹妹张美人已嫁过人，按礼不适宜上配至尊的皇帝，王凤却托言张美人适宜生男孩，将她献入后宫，用不正当的手段为小妾的妹妹谋取私利。
又凤知其小妇弟张美人已尝适人，于礼不宜配御至尊，托以为宜子，内之后宫，苟以私其妻弟；闻张美人未尝任身就馆也。
For example, Wang Feng knew that his concubine's sister, Zhang Meiren, had already been married to someone. It was improper for her to be a concubine for the honorable emperor. However, Wang Feng claimed that Zhang Meiren was suitable for giving birth to boys and offered her to the palace. He used improper means to seek personal gain for his concubine's sister.