It is said that in the period of the Tang Dynasty, Dosen, who founded the Nanzan-risshu sect, completed the study of the commandments and that Ganjin, who learned from Dosen's disciple, transmitted the commandments to Japan, as requested by Japanese priests who had studied in China.
唐代には南山律宗を開いた道宣が出て戒律学を大成し、その孫弟子である鑑真は、留学僧の要請で日本に律を伝えたとされている。