When FUJIWARA no Mototsune, the Sangi (government adviser) mentioned this to his father, FUJIWARA no Yoshifusa, the Taisei Daijin, the surprised Yoshifusa went before the Emperor Seiwa and defended MINAMOTO no Makoto.
参議藤原基経がこれを父の太政大臣藤原良房に告げると、驚いた良房は清和天皇に奏上して源信を弁護した。