《宋书·志·卷三十一》
按，置五行属金，白是金的颜色。坑是一种器具，有口，瓮一类的器物，是用土烧制的瓦器，质地坚硬，也属金一类。 訇如白坑破 ，指洛阳、长安先后被攻陷，王室大为衰败。 合集持作瓤 ，指元皇帝聚集朝廷余留的大臣，自己主持国政，但未能收复中原，衹是在江南称帝。
按白者晋行，坑器有口，属甕，瓦质刚，亦金之类也。 訇如白坑破 者，言二都倾覆，王室大坏也。 合集持作甒 者，言元皇帝鸠集遗余，以主社稷，未能克复中原，偏王江南，故其喻小也。
According to the theory of the Five Elements, gold belongs to the gold family, and white is the color of gold. "Pit" is a kind of utensil with a mouth. "Weng" is a kind of utensil made of baked clay. It is made of baked clay and is hard in texture. It also belongs to the gold family. "Hongru Bai坑 broke" refers to the fall of Luoyang and Chang'an, which led to the decline of the imperial family. "Collection to hold" refers to the fact that Emperor Yuan gathered the remaining ministers of the court to preside over the national government, but failed to recover the Central Plains and became emperor in Jiangnan.