佛說觀佛三昧海經 7.7

7.7

佛告阿難：「汝今持是境界念想，為未來世一切眾生當廣宣說，是名諸佛神通境界，若失此事則名謗佛斷菩提種。持是法者鬼魅不著，恒為諸佛之所護助。」

The Buddha told Ānanda: "Now uphold this realm of meditative mindfulness and expound it widely for all sentient beings in future ages. This is called the realm of divine power of the Buddhas; to lose this matter is called slandering the Buddha and severing the seed of bodhi. One who upholds this teaching will not be possessed by demonic spirits and will constantly be sheltered and aided by the Buddhas."