"Poetry·Wei Feng·Fa Tan" and "Answers to the Book of Poetry". According to Jisheng's naming query, the source of Qingran's Shijing is as follows:
1. Qing: The river water is clear and rippled. From "Poetry·Wei Feng·Fa Tan".
2. Ran: The frost and dew are passing by, and the sun and the moon are like gifts. Xie Lingyun's "Answer to Zhongshu Poems".