In 703, he visited Tang China together with Chiho and Chiyu, studied Faxiang Buddhism under Chishu (Zhizhou in Chinese) the Bokuyo Daishi (Master Puyang), who was a dharma-grandson of Ki (Ji in Chinese, aka Kuiji) the Jion Daishi (Master Cien) and the third generation founder of the Faxiang sect.
703年（大宝(日本)3年）智鳳・智雄らとともに入唐し、慈恩大師基（または窺基）の法孫で法相第3祖の濮陽（ぼくよう）大師智周に師事して法相宗を学んだ。