《北史·本记·卷三》
九年春正月初十，下诏禁止各种图谶和秘纬书籍以及《孔子闭房记》，私自留存的处以死刑。
九年春正月戊寅，诏禁图谶秘纬及名《孔子闭房记》，留者以大辟论。
On the tenth day of the first month of spring in the ninth year, an imperial edict was issued banning all kinds of prophecies, secret prophecies, and books such as "The Record of Confucius's Closed Room." Those who kept them privately would be sentenced to death.