《太平广记·卷二百一十·画一》
元帝不能经常都看到她们，于是画工们给这些嫔妃们每人画一幅像，元帝看着画像喜爱那个就召见那个。
乃令画工图其形，按图召幸之。
Emperor Yuan couldn't see them often, so the painters painted a portrait for each of the concubines. Emperor Yuan would call the one he liked by looking at the portrait.