According to volume 10 of the latter part ten of Nihongi Ryaku (Summary of Japanese Chronologies), he was appointed as Awaji no kuni no kami (the governor of Awaji Province) at the Jimoku (ceremony for appointing officials) on February 21, 996, however, FUJIWARA no Michinaga paid a palace visit and immediately dismissed MINAMOTO no Kunimori, who had just received the announcement for change of position of Echizen no kuni no kami (the governor of Echizen Province), and changed the position of FUJIWARA no Tametoki from Awaji no kami to Echizen no kami.
日本紀略後編十によると長徳2年(996年)正月25日の除目で淡路国守に任ぜられたが、3日後の28日に藤原道長が参内して、俄に越前国守の除目を受けたばかりの源国盛を停めて、藤原為時を淡路守から越前守に変更した。