僧一行(公元683-727年),原名张遂,河北巨鹿人,唐代著名的天文学家。因躲避权贵,不愿受武则天的侄子武三思的拉拢,在二十一岁时从荆州景禅师出家,取法名一行。一行从小好学,聪慧异常,有过目不忘之本领。他“博览经书,尤精历象、阴阳五行之学。”一行出家后,先在嵩山普寂学禅,后又师从善无畏、金刚智等 Monk and his entourage (AD 683 - 727), formerly known as Zhang Sui, Hebei Julu people, the famous astronomer of the Tang Dynasty. Due to avoid dignitaries, do not want Wu Zetian’s nephew Wu Sansi draw, at the age of 21 Jingjing King Jackson monks, law-name line. His small school, intelligent exception, have never forgotten skills. He “exposition books, especially fine elephants, yin and yang, five elements of the line.” After his family, first solitude in Songshan Zen, and then master brave, King Kong Chi, etc.