金光明經文句記 2.30

2.30

二、「貧」下，約經文明報。四姓者，毘舍、首陀、婆羅門、剎利。人中雖謂二賤二貴，既乏聖財，四姓三界俱屬貧窮。洄，轉水也。澓，深水也。漏心持戒求可意果，正為有流洄澓所困三有流轉，故曰有流，非四流中一。有漏因果具足三障，能障見佛天中天也。亦是障於第一義天。以障隔故，義言捨離。此乃事持成於理犯。據經招報貧窮困苦，諸天捨離也。

Second, from 'Poor' below, explaining retribution based on the sūtra text. The four castes are Vaiśya, Śūdra, Brāhmaṇa, and Kṣatriya. Although among humans two are called low and two noble, since they lack noble wealth, all four castes and the three realms belong to poverty. Hui means whirling water; fu means deep water. Keeping precepts with a contaminated mind to seek desirable fruit is precisely to be trapped in the whirlpool of the stream of existence and to wander in the three realms of existence; hence it is called 'the stream of existence,' not one of the four floods. Contaminated causes and effects are fully endowed with the three obstacles, which can obstruct seeing the Buddha, the Deva among Devas. It also obstructs the Heaven of the Supreme Truth. Because of this obstruction, it is conceptually spoken of as abandonment. This is phenomenal keeping turning into a transgression of principle. According to the sūtra, it incurs the retribution of poverty and distress, and abandonment by the devas.