According to "Honcho seiki," there is a description about the hyojo he was carrying, as 'it is commonly called naginata,' and it is supposed that this was the first appearance of naginata (Japanese halberd) in a document.
なお、『本朝世紀』にはこの経光の所持していた兵仗に対し「俗に之奈木奈多と号す」との記述があり、薙刀の初見とされている。