《容斋随笔·卷七·薛能诗》
他又有《荔枝诗序》说： 杜工部老来住在西蜀，不写关于荔枝的诗，难道是有意写作而没有顾得上吗？
又有《荔枝诗序》曰： 杜工部老居西蜀，不赋是诗，岂有意而不及欤？
His "Preface to the Lychee Poems" also states: At the end of his life, Du lived in Xishu, but didn't write about litchis. Did he mean to write about it but didn't have the time?