No. 88, Essays in Idleness: The Tsurezuregusa of Kenko. Translated by Donald Keene.
A certain man owned a copy of Wakan Roei Shu which, he claimed, was in the hand of Ono no Tofu. Another man commented, "I am sure that there must be a good reason for the attribution, sir, but does it not seem an anachronism that Tofu should have written the manuscript of a work compiled by Fujiwara no Kinto, a man born after his death? It seems rather strange." The owner replied, "That's precisely what makes this manuscript so unusual." He treasured it more than ever.
This was written around 1330.