After the rain, the cuckoos sing in the green mountains, and the ponds are filled with willow trees. Whose poem is this?

After the rain, cuckoos sing in the green mountains, and the ponds are filled with willows and flying cotton wool

Source

Song Dynasty? Liu Xianlun's "Xujiang Road"

The meaning of the poem is : After a burst of rain in the green mountains, the cuckoos kept singing, the water in the pond was full, and the catkins were flying like cotton. The poem expresses the fresh and leisurely mood after the rain and the love for nature.