佛說觀佛三昧海經 6.53

6.53

佛告阿難：「是名如來從閻浮提昇忉利宮，色相光明諸神化事。佛滅度後佛諸弟子，若如是觀是名正觀，若異觀者名為邪觀。作此觀者，除一億劫生死之罪，臨命終時見十方佛，必生他方淨佛國土」。

The Buddha told Ānanda: "This is called the divine transformations of bodily marks and radiant light when the Tathāgata ascended from Jambudvīpa to the Trāyastriṃśa palace. After the Buddha's parinirvāṇa, if the Buddha's disciples contemplate in this way, it is called correct contemplation; if they contemplate otherwise, it is called false contemplation. One who performs this contemplation eliminates the sins of birth and death for one hundred million kalpas, and at the end of life will see the Buddhas of the ten directions and certainly be reborn in a pure Buddha land in another realm."