On the authority of the Testament of St. Francis

24. Moreover Francis, the confessor of Christ, of holy memory, is said to have commanded about the end of his life, the command of whom is itself call the Testament: that the words of the rule itself are not to be glossed, and as we read his words, to this extent and thus he should be understood, let it not be said, adding that the friars are not to seek in any manner other letters from the Apostolic See, and inserting a certain something that they cannot observe without much difficulty, on account of which the friars, hesitating whether they were bound to the observance of the aforesaid Testament, sought this kind of doubt to be removed from their consciences by the same predecessor, Gregory XI. Who, as is told, attending to the danger of souls and [its] difficulties, which could be incurred on account of it, to remove doubt from their hearts told the friars that they were not held to the observance of this command, because without the consensus of the friars and more so of the ministers, all of whom it affects, it is unable to oblige, neither did it oblige his successor in any manner, since as an equal among equals he would not have [any] power [of commanding]. We moreover reckon that nothing is to be innovated regarding the present article.