Calligraphy content: good rain knows the season, when spring happens. Sneak into the night with the wind, moisten things silently. The wild path is dark, and the river is bright. Look at the red and wet place, the flowers in Jinguancheng are heavy. ("Delighting in Rain on a Spring Night" written by Du Fu in Tang Dynasty)
Signature: Xin Mao Han Buyong.
Signature and seal: Han Buyong.