Fourfold Rules of Discipline, The ［四分律］ (Chin Ssu-fen-lü;  Shibun-ritsu): A text of the Indian Dharmagupta school on the vinaya, or rules of monastic discipline, translated into Chinese in the early fifth century by Buddhayashas and Chu Fo-nien. The Dharmagupta school was one of the twenty Hinayana schools of ancient India. The Fourfold Rules of Discipline is so called because it divides the monastic rules into four sections; it sets forth 250 precepts for monks and 348 for nuns. This work is the vinaya text of the Precepts (Lü; Ritsu) school in China and Japan.