《新五代史·附录·四夷附录第三》
周太祖时解除禁令，老百姓得以和回髓私自做交易，玉价因此大幅下跌。
周太祖时除其禁，民得与回鹘私市，玉价由此倍贱。
During the reign of Emperor Taizu of Zhou, the ban was lifted, and the common people were able to trade privately with Hui Sui, resulting in a significant drop in the price of jade.