成唯識論述記 10.183

10.183

述曰：大文第三，十地修度門。《十地經》、《攝論》、《顯揚》、《瑜伽》等皆言：初地施為增上，餘度隨力隨分非不修習，乃至十地，智為增上，餘度非不修習，隨力隨分故地地修十。問：若第五地修定度者，何故三地名為發光？定障三地除，成熟至五地。

The Commentary states: The third major division is the section on cultivating the perfections in the ten grounds. The Daśabhūmika-sūtra, Mahāyānasaṃgraha, Prakaraṇāryavācā, Yogācārabhūmi, and so forth all state: on the first ground, giving is predominant, while the remaining perfections are not uncultivated, according to one's strength and portion; and so on up to the tenth ground, where wisdom is predominant, while the remaining perfections are not uncultivated, according to one's strength and portion; therefore, ten are cultivated on each ground. Question: If the fifth ground cultivates the perfection of concentration, why is the third ground called "Luminous"? The obstacles to concentration are eliminated on the third ground, and brought to maturation by the fifth ground.