The Ritsushu sect is a Buddhist school that transmits and studies Vinaya precepts which Buddhists, especially priests and nuns should comply with; Ganjin, a successor of the Nanzan-risshu sect based on Shibunritsu (Four-Part Vinayapitaka, which explains about regulations and prohibited matters of the priest) is said to have conducted Jukai (handed down the precepts) to more than 40,000 people.
律宗とは、仏教徒、とりわけ僧尼が遵守すべき戒律を伝え研究する宗派であるが、鑑真は四分律に基づく南山律宗の継承者であり、4万人以上の人々に授戒を行ったとされている。