《汉书·传·楚元王传》
至于左氏丘明所修的《春秋》，都是古文旧书，多的有二十多篇，藏在秘府，隐秘没有公布。
及《春秋》左氏丘明所修，皆古文旧书，多者二十余通，臧于秘府，伏而未发。
As for the "Spring and Autumn" repaired by Zuo Shiqiu Ming, they were all ancient texts and old books, with more than twenty chapters. They were hidden in the secret house and not made public.