大般涅槃經義記 3.120

3.120

第二句中，化赴物機名「至王所」，化現物情義言百王，隨人所求皆能俯應名「王所勅我悉能為」。

In the second clause, the transformation rushing to the potentiality of beings is called 'arrived at the king's place.' Transformation manifesting the sentiments of beings is in meaning called 'a hundred kings.' According with what people seek and being able to condescend to respond is called 'whatever the king commands, I can do it all.'