Later, on December 9, 757, Daijokan (Grand Council of State) discussed the background of Koden (rice field given to vassals or their families for their achievements) 40 cho which had been given for OWARI no Osumi's achievements, and decided that his deeds was Joko (first-grade achievement) and the Koden should be passed for three generations.
後、天平宝字元年（757年）12月9日に、太政官は尾治大隅の功田40町の内容を論じ、それが上功にあたり、三世に功田を伝えると定めた。