佛說觀佛三昧海經 10.37

10.37

「復次阿難！譬如有王暴虐違道，民罹其毒人怨神怒，國大亢旱求請神祇不能得雨。有臣白言：『大王當知，今此境內林藪之中，有一仙士五通無礙，王可祈請令其呪龍。』大王聞已欣踊無量，遣人詣林祈請仙人。神仙飛往大王殿前，高聲唱言：『大王無道，諸天龍神皆四散去不護王國，云何使我令請雨也？』王聞此語極懷慚愧，改悔先行所作惡事。仙人知王心已軟善，應念誦呪，神通力故天降甘露，地出湧泉潤澤一切。」

"Furthermore, Ānanda! For example, there was a king who was tyrannical and acted contrary to the Way, so that the people suffered his afflictions, men harbored resentment, and the spirits were enraged. A great drought struck the country, and praying to the deities failed to bring rain. A minister said to him: 'The Great King should know that now within the groves and marshes of this realm, there is a ṛṣi with the five unhindered superknowledges. The King may pray and invite him to chant incantations over the dragons.' Upon hearing this, the Great King leaped with immeasurable joy and sent someone to the grove to pray to and invite the ṛṣi. The divine ṛṣi flew to the front of the Great King's palace and proclaimed in a loud voice: 'The Great King is devoid of the Way; the devas, dragons, and spirits have all scattered in four directions and do not protect the king's country. Why do you have me pray for rain?' Hearing these words, the king felt extreme shame and repented of his past evil deeds. Knowing that the king's mind had become gentle and wholesome, the ṛṣi recited an incantation upon the thought. By the power of his spiritual penetration, the heavens rained down sweet dew, and springs gushed forth from the earth, moistening everything."