增壹阿含經 8.1.p2

8.1.p2

It was then that the Bhagavān addressed the monks, “Of those who get forms that are large, none surpass the asura king. Monks, you should know, that asura’s form is 84,000 *yojana*s long, with a mouth that’s a thousand *yojana*s across. Monks, you should know that there are times when the asura king wants to encroach on the sun. He doubles his body to 168,000 *yojana*s and moves in front of the sun and moon.