瑜伽師地論略纂 1.106

1.106

「踰繕那」者，《俱舍》頌云「極微微金水，兔羊牛隙塵，蟣虱麥指節，後後增七倍。二十四指肘，四肘為弓量，五百俱盧舍，此八踰繕那。」計十六里也。　「此洲六千五百」者，《俱舍》云：三邊各二千，南邊有三半。有解云：此據周圍，南面有五百。東洲量七千，彼云：三邊如贍部，東邊三百半。有解云：此處周圍，東面有一千。西洲六千五百，彼云：徑二千五百，周圍此三倍。彼七千五百，多此五百。北洲八千，彼云：面各二千等。彼此皆同，故知此據周圍之量。亦有解云：此據徑量，大於彼說，由宗異故。

Regarding "yojana": the Kośa verse says: "Paramāṇu, aṇu, gold, water, / Rabbit, sheep, ox, and dust in a chink, / Nit, louse, barley grain, finger-joint, / Each subsequent is seven times greater. / Twenty-four finger-joints make a cubit, / Four cubits make a bow-length, / Five hundred [bow-lengths make] a krośa, / Eight of these make a yojana." Calculated, it is sixteen li. "This continent is six thousand five hundred [yojanas]": the Kośa states that three sides are each two thousand, and the southern side is three and a half. One explanation says: this is based on the circumference, with the southern face being five hundred. The eastern continent measures seven thousand; it states: three sides are like Jambudvīpa, and the eastern side is three hundred and a half. One explanation says: this is its circumference, with the eastern face being one thousand. The western continent is six thousand five hundred; it states: its diameter is two thousand five hundred, and its circumference is three times this. That would be seven thousand five hundred, which is five hundred more than this. The northern continent is eight thousand; it states: each face is two thousand, and so forth. Since both are the same, we know this is based on the measure of circumference. There is also an explanation stating: this is based on the measure of diameter, which is greater than what that text says, because the schools are different.