Daniel 6:3-5, 10 (NKJV)
Then this Daniel distinguished himself above the governors and satraps, because an excellent spirit was in him; and the king gave thought to setting him over the whole realm. So the governors and satraps sought to find some charge against Daniel concerning the kingdom; but they could find no charge or fault, because he was faithful; nor was there any error or fault found in him. Then these men said, “We shall not find any charge against this Daniel unless we find it against him concerning the law of his God.”
Now when Daniel knew that the writing was signed, he went home. And in his upper room, with his windows open toward Jerusalem, he knelt down on his knees three times that day, and prayed and gave thanks before his God, as was his custom since early days.