The Rule obliges the usus pauper.

12. Moreover they should have neither utensils nor other things, the use of which [is had] from necessity and for the execution of the duties of their state [in life], nor indeed the use of all things, as has been said, to any [degree of] superfluity, riches, or abundance, which would derogate poverty such as either a treasuring up [of such things] or by such a spirit so that they might alienate [such things], or sell [them], receive [them], either under the appearance of providing for the future or by other occasions; nay even let [their] abdication of all kinds of dominion and the necessity in [their] use [of things] appear in all things [pertaining] to them. Let the ministers and custodes together and individually in their administrations and custodies dispose of these also with discretion according to the exigency of persons and places, since concerning such things sometimes the quality of persons, the variety of seasons, the condition of places and not a few other circumstances more or less or otherwise require to be provided for. Let them do those things however so that holy poverty may always shine forth in them and in their deeds, just as it is appointed them [to do] from their rule.