The "Dousha Sutra" has a total of 12 volumes, no title, and is signed "July, the fourth year of Tianyou (907)..." It is the end of the Tang Dynasty and the beginning of the Five Dynasties. Its calligraphy is in the same line as the mainstream regular script of the Tang Dynasty. It is rigorous and methodical. The body is tall and straight, with the style of the north stele. It is a rare thing among the classics written in the Tang Dynasty.