仁王護國般若波羅蜜多經疏 2.495

2.495

解曰：言三界者，受所依處。言六趣者，受所生趣。一切有情者，能起受者。婆羅門等者，明受妄分別也。婆羅門者，此云靜志。剎帝利者，此王種也。言毘舍者，順古譯也，新云吠舍，此為商也。言首陀者，亦順古譯，新云戍達羅，此為農也。受於四姓，領解勝劣，令別作業，皆名為受。從此第三顯妄對治。

Exposition: 'The three realms' refers to the loci upon which sensation relies. 'The six destinies' refers to the destinies in which sensation arises. 'All sentient beings' refers to those capable of arousing sensation. 'Brāhmaṇas and so on' clarifies the false discriminations of sensation. 'Brāhmaṇa' is translated here as 'pure intention.' 'Kṣatriya' is the royal caste. 'Vaiśya' follows the old translation; the new translation says vaiśya, which refers to merchants. 'Śūdra' also follows the old translation; the new translation says śūdra, which refers to farmers. Experiencing the four castes and apprehending superiority and inferiority leads them to create different karmas; all are termed sensation. From this point, the third [part demonstrates] the antidote to delusion.