When IYOBE no Iemori came back from Tang (China) in 776, he brought with him the annotations of two books, "Shunju Kuyoden" and "Shunju Kokuyoden," which were added to the small scriptures in 798.
なお、『春秋公羊伝』と『春秋穀梁伝』は、宝亀7年（776年）に唐から帰国した伊与部家守（伊予部宅守）が両書の解釈を伝え、延暦17年（798年）に小経に追加された。