《宋史·本纪·卷十八》
绍圣二年春正月初七，诏令国史院增补神宗御集。
二年春正月甲辰，诏国史院增补先帝御集。
In the first month of spring in the second year of the Shaosheng era, an imperial edict ordered the State History Academy to supplement the imperial collection of Emperor Shenzong.