俱舍論頌疏論本 11.12

11.12

「山間有八海，前七名為內。
最初廣八萬，四邊各三倍。
餘六半半陜，第八名為外。
三洛叉二萬，二千踰繕那。」

"Between the mountains are eight seas; the first seven are named inner.
The first is eighty thousand [yojanas] wide; its four sides are each three times that.
The remaining six are narrower by half and half; the eighth is named outer:
three lakṣas, twenty thousand, and two thousand yojanas."