長阿含經 7.p67

7.p67

“Priest, suppose there’s a monk who doesn’t get sleepy from the beginning to the end of the night. He’s diligent and not negligent, focusing on the factors of the path. With the power of samādhi, he cultivates the pure heavenly eye. With the power of the heavenly eye, he watches sentient beings. They die here and are born there, and they’re born here from there. Their life spans are long and short, and their appearances are beautiful and ugly. According to the results of their actions, they arrive in good and bad destinations. He fully knows and sees this. You cannot witness the good and bad destinations of sentient beings with the polluted flesh eye, so you say they don’t exist. Priest, we know in this way there’s surely another world.”