During the battle between the Soga clan and the Mononobe clan, Shotoku Taishi, who was affiliated with the Soga clan, vowed to Shitenno that he would build a temple if they had won the battle.
蘇我氏と物部氏の戦いにおいて、蘇我氏側である聖徳太子は戦いに勝利すれば、寺院を建てると四天王に誓願を立てた。