Canon 385

1. Imbued with Christ's spirit of poverty, clerics are to

strive to lead a simple life and thus to be witnesses to the

heavenly goods before the world; using spiritual discretion let

them designate their temporal goods to correct use; and from the

goods they acquire on the occasion of the exercise of an ecclesiastical office, ministry, or function, let them first provide for

their own suitable sustenance and for the fulfillment of their

obligations and then devote and share the rest in works of the

apostolate or of charity. 2. Clerics are forbidden to exercise

by themselves or through another any business or trade whether

for their own benefit or for that of another, except with permission of the authority defined by particular law or by the Apostolic See. 3. A cleric is forbidden to post bond, even from his

own goods, unless he has consulted his own eparchial bishop or,

as the case may be, the major superior.