Daniel 6:8-10

8Now, O king, establish the injunction and sign the document so that it may not be changed, in accordance with the law of the Medes and Persians, which [insures that it] may not be altered or revoked.”

9So King Darius signed the document, that is, the injunction.

10Now when Daniel knew that the document was signed, he went into his house (now in his roof chamber his windows were open toward Jerusalem); he continued to get down on his knees three times a day, praying and giving thanks before his God, as he had been doing previously.