《明史·列传·卷一百三十二》
 如果说是外廷臣子吧，那么去年城南郊祭那一天，传说皇宫有一个贵人，品性坚贞淑静，承皇上恩幸。
然犹曰外廷臣子也。去岁南郊之日，传闻宫中有一贵人，以德性贞静，荷上宠注。
If it was said it was the officials from outside the palace, on that day last year when they offered sacrifices in the southern suburbs of the imperial city, it was said that there was a noble person in the palace with a steadfast and tranquil character who received favor from the emperor.