一切經音義 53.318

53.318

閻羅（或名閻磨羅應言夜磨盧迦此譯云雙世也竊謂苦樂並受號之為雙也）。

Yan-luo (閻羅) (Also called Yan-mo-luo (閻磨羅); it should properly be said as Yamaloka (夜磨盧迦). This is translated as 'the twofold world.' I suspect this means that because pain and pleasure are experienced together, it is called 'twofold').