The brother who is guilty of a graver offence… shall be excluded both from the table and from the oratory. Let none of the brethren consort with him or speak to him. Let him work alone at the task enjoined him and abide in penitential sorrow, pondering that terrible sentence of the apostle: Such a one is delivered to Satan for the destruction of the flesh, that the spirit may be saved in the day of our Lord1. Let him take his meals alone, in the measure and at the hour which the abbot shall consider suitable for him. Let him not be blessed by anyone who passes by, nor the food which is given him.
1 Cor v, 5