The Rule of St. Benedict

If a brother is found stubborn or disobedient or proud or murmuring, or opposed to anything in the Holy Rule and a contemner of the commandments of his Superiors, let him be admonished by his Superiors once and again in secret, according to the command of our Lord (cf Mt 18:15-16). If he doth not amend let him be taken to task publicly before all. But if he doth not reform even then, and he understandeth what a penalty it is, let him be placed under excommunication; but if even then he remaineth obstinate let him undergo corporal punishment.