The Popes clarify the rule.

2.

 Because the professors and devout emulators of the said holy rule were truly striving, as both pupils and true sons of such a Father, just as even they fervently do strive, to observe firmly, without mitigation, and entirely the aforementioned rule: attending to certain things which might produce a doubtful sense contained in the text of the very rule, for the sake of having a clarification of these very same things they had recourse prudently at one time to the peak of Apostolic dignity, that certified through Her, at whose feet even by the rule itself they are subject, they might attend to the Lord (all doubts having been driven away) with full clarity of conscience. Likewise Our predecessors the Roman Pontiffs directing their ears and souls to their pious and just supplications clarified one after another (as was right) those things which seemed to be doubtful: they added some things and conceded others, as seemed to disentangle the consciences of the Friars, and the status of this unmitigated observance. Truly and very frequently where there is no fault, befrighted consciences, which fear greatly any deviation in the way to God, are accustomed to fear it. From the said clarifications the consciences of all of the said Friars have not been entirely quieted, nay rather there are born and arise waves concerning those things pertaining to the rule and to the condition of those doubting in these matters, as have been brought to our ears many times, both from many public and private consistories. Wherefore through these Friars We have been humbly supplicated, in order that from the benignity of the Apostolic See We might care to employ opportune remedies to the aforesaid doubts, which have occurred, and which can occur in the future.