佛說觀佛三昧海經 4.43

4.43

The Buddha told Ānanda: "Practicing such contemplation is called right contemplation. If one contemplates otherwise, it is called wrong contemplation. After the Buddha's parinirvāṇa, those disciples of the Buddha who recall this, reflect upon this, and contemplate this phenomenon will eradicate the sins of birth and death spanning two million kalpas, will constantly be born in the heavens, and will hear the teachings on the ten wholesome deeds."