長阿含經 14.p106

14.p106

“Then the two of us came to an understanding, discussing the meaning of being Śakra. He would ask, I would answer, and then he would become my disciple. But I’m a disciple of the Buddha, and I’ve attained the path of stream entry. I won’t fall to other destinies, and I’ll surely achieve the fruit of the path in not more than seven rebirths. Please, Bhagavān, describe to me how to become a once-returner!”