仁王經疏 2.156

2.156

釋曰：第三、配屬王位。謂十善業道中下品者得粟散王，若上品者得鐵輪王。小王眾多猶如散粟，從喻立號名粟散王。依《本業經》，十善有三，上品鐵輪、中品粟散、下品人王。

Explanation: Third, correlating to royal positions. This means that those of the middle and lower grades of the path of the ten virtuous actions become scattered-millet kings, whereas if they are of the upper grade, they become iron wheel-turning kings. The minor kings are numerous like scattered millet, hence named 'scattered-millet kings' from the metaphor. According to the *Benye jing*, there are three grades of the ten virtues: the upper grade is an iron wheel[-turning king], the middle grade is a scattered-millet [king], and the lower grade is a king of humans.