According to Buddhist precepts, monks were originally prohibited to own money and other articles other than sanne-ippatsu (three robes and one begging bowl), which were deemed as the minimum required clothes and eating utensil.
仏教では本来、僧侶は、最低限の着物と食器である三衣一鉢以外の金品の所有を戒律で禁じられていた。