sentences:  In the case of religious orders aggregating their own confraternities in their own churches, the consent of the bishop given for the erection of the house or church of the order is sufficient.The bishop must approve, but may modify the practices and regulations of the confraternity to be aggregated, except those to which the indulgences have been expressly attached.Only those indulgences are imparted by aggregation which have been conceded with that provision.