It is known from "Nihongi Ryaku" (Summary of Japanese Chronologies) and "Fuso Ryakki" (A Brief History of Japan) that Grand Minister FUJIWARA no Tamemitsu held Hoju-ji Temple's 'rakkei hoyo' (a memorial service to celebrate the construction of a temple) in the year 988.
988年(永延2年)、太政大臣藤原為光が法住寺の落慶法要をいとなんだことが『日本紀略』『扶桑略記』などにみえる。