《明史·志·卷二十五》
嘉靖十一年，大学士李时等因为圣上尚无子嗣，请朝中大臣前往岳镇名山祝祷。
十一年，大学士李时等以圣嗣未降，请廷臣诣岳镇名山祝祷。
In 1532, Grand Secretary Li Shi and others asked the ministers of the court to go to the famous mountains of Yue and Zhen to pray, because the emperor had no children.