法華義疏 1.356

1.356

「復有名月天子」者，注解云，帝釋輔臣也。有人云，月天子即月天也。「普香天子」者，謂星天也。「寶光天子」者，謂日天子也。既是三光故後列之，出《正法華經》。復有經云「觀世音名寶意，作日天子；大勢至名寶吉祥，作月天子；虛空藏名寶光，作星天子」也。

Regarding “there were also the deva son Named Moon [Candradevaputra] and others”: the commentary states that they are the assisting ministers of Śakra. Some say that the deva son Moon is simply the moon deva [Candra]. “The deva son Universal Fragrance” refers to the star devas. “The deva son Jewel Light” refers to the deva son Sun [Sūryadevaputra]. Since these are the three luminaries, they are listed afterward; this comes from the Zheng fahua jing. Another sūtra states: “Avalokiteśvara is named Jewel Thought and acts as the deva son Sun; Mahāsthāmaprāpta is named Jewel Auspiciousness and acts as the deva son Moon; Ākāśagarbha is named Jewel Light and acts as the deva son Star.”