Wikipedia
Dushun
Dushun (557–640) was the First Patriarch in the Huayan School of Chinese Buddhism, which had the Indian Avatamsaka Sutra as its central scripture. This school originated in China. It is known as Kegon in Japan. The Avatamsaka's seminal chapter once circulated separately and is known as The Gandavyhua Sutra. Each designation is roughly equivalent to "Flower Garland."