《旧五代史·后梁·太祖纪五》
凡东、西两京以及各道州府，制造假犀玉珍珠腰带、璧珥以及各色货物，一律查禁，不准再制造。
应东、西两京及诸道州府，创造假犀玉真珠腰带、璧珥并诸色售用等，一切禁断，不得更造作。
All the imitation rhino jade pearls, waistbands, pendants, and various goods in the two capitals in the east and the west as well as prefectures in all circuits must be checked and banned, and making them will not be permitted in the future.