If God didn't see fit to have it recorded in Scripture, I don't see that anyone is obligated to believe any *teaching* no matter how old it is, or is claimed to be, or who puts it forth.
It is not binding on those outside the Catholic church. For those who choose put themselves under the Catholic church's authority, then whatever the Catholic church declares for its adherents is what they have to believe.
But if it's not found in Scripture, it's just say so.
I do not judge or test God. In faith I am content to let Him judge me.
Peace be with you