This occurred because one of the robbers who was captured sneaking into the residence of MINAMOTO no Mitsunaka and questioned by kebiishi confessed that MINAMOTO no Chikashige headed the robbers and kept all the articles they had stolen.
盗賊が源満仲の邸宅に入ったところ一人が捕まり、検非違使の尋問に対して、頭目は源親繁で奪った財物もすべて親繁の元にあると白状したためである。