《新唐书·本纪·卷八·穆宗 敬宗 文》
四月二十四日，因久雨不住，宣宗下诏：京城及京城附近辖区审察囚犯的罪案，免除度支、盐铁、户部拖欠的赋税。
四月壬申，以雨霖，诏京师、关辅理囚，蠲度支、盐铁、户部逋负。
On April 24, due to continuous rainfall, Emperor Xuanzong decreed: To investigate the crimes of prisoners in the capital and surrounding areas, and to exempt the Ministry of Revenue, Salt Tax, and Household Department's tax arrears.