俱舍論頌疏論本 11.13

11.13

釋曰：妙高為初，輪圍為後，中間有八海。前七名為內，七中皆具八功德水：一甘、二冷、三耎、四輕、五清淨、六不臭、七飲時不損喉、八飲已不傷腹。如是七海初廣八萬，約持雙山內邊周圍量，於其四面數各三倍，謂各成二億四萬踰繕那。其餘六海量半半狹，謂第二海量廣四萬，乃至第七量廣一千二百五十。此等不說周圍量者，以煩多故。第八名外，鹹水盈滿，量廣三億二萬二千。

The explanation says: Sumeru is the first, and Cakravāḍa is the last; between them are eight seas. The first seven are named the inner [seas]. All of the seven possess water with eight qualities: first, sweet; second, cold; third, soft; fourth, light; fifth, pure; sixth, without foul odor; seventh, not harming the throat when drunk; and eighth, not injuring the stomach after drinking. In this way, the first of the seven seas is eighty thousand wide; measured by the inner circumference of Mount Yugaṃdhara, the amount on its four faces is threefold each, namely, each becoming two hundred thousand and forty thousand yojanas. The measurements of the remaining six seas become narrower by half and half: that is, the second sea measures forty thousand wide, down to the seventh, which measures one thousand two hundred and fifty wide. The circumference of these is not stated because it would be too cumbersome. The eighth is named outer, filled with salt water, and its breadth measures three hundred thousand twenty-two thousand.