That is described in 'Shoganji Toragozen Engi' handed down at Shoganji and still exists today in Yamashita (in present-day Hiratsuka City) and was a branch temple of Korai-ji Temple.
事が山下（現、平塚市）に現存する高麗寺の末寺であった荘巌寺に伝わる「荘巌寺虎御前縁起」に記されている。