According to Musashi's famous biography "Niten-ki," he fought with Gonnosuke in Edo, however, the information on the fight isn't found in the other Musashi biography "Buko-den" on which the writer of "Niten-ki" is based.
同記事のある『二天記』ではこの試合は江戸でのこととされるが、この記事は『二天記』の原史料である『武公伝』には記載されていない。