In November 1087, Yoshiie defeated KIYOHARA no Takehira and KIYOHARA no Iehara at Kanazawa fortress in Dewa Province, and he reported in 'Kokuge' (an official report to the government), 'Using my own power, I was lucky enough to defeat them.
1087（寛治1）11月に義家は出羽国金沢柵にて清原武衡、清原家衡を破り、12月、それを報告する「国解」の中で「わたくしの力をもって、たまたまうちたいらぐる事をえたり。