Ezra 5:3-5

3 At the same time came to them Tatnai, governor of the province Beyond-the-River [Euphrates], and Shetar-Boznai and their companions, and said thus unto them, Who hath authorized you to build this Beis [Hamikdash], and to finish this structure?
4 Then said we unto them accordinging what were the shmot of the men that are constructing this building.
5 But the Ayn Eloheihem (Eye of their G-d) was upon the leaders of the Yehudim, that they could not cause them to cease, until the matter came to Daryavesh (Darius); and then answer was returned by letter concerning this matter.