Paladin Oath Item

[Castle_of_Moonlight]

For convenience of Paladins, and this is made without knowing if there is an alternative way to check what a paladin's given oaths are, could we have an item (Like a book or something) that we can use to reference the exact Paladin oaths we swear? This item would be a plot item that is given to the PC on swearing an oath, have no special properties, and only contain a description of what each Oath expects from a paladin.