According to "Sonpi Bunmyaku" (a text compiled in the fourteenth century that records the lineages of the aristocracy) and other records, it is said there was a copy of the Imperial instructions (ganmon (prayer)) in the documents of the Tanaka family of Iwashimizu Hachiman-gu Shrine (the documents of the Tanaka family of 'MINAMOTO no Yorinobu Komonan' (old manuscripts)), which was said to be enshrined by Tsunemoto's grandchild, MINAMOTO no Yorinobu to Konda Hachiman-gu Shrine.
『尊卑分脈』等によると経基の孫とされる源頼信が誉田八幡宮に奉ったという告文（願文）の写しが石清水八幡宮田中家文書の中にある（石清水八幡宮田中家文書「源頼信告文案」古写）。