דניאל ג:יד פירוש: רש״י

Is it meaningless Aram. הַצְדָא. Are my decrees void and desolate and an empty thing in your eyes, Shadrach, Meshach, and Abednego, that you do not worship my god? The “hey” of הַצְדָא is used as an interrogative expression.

that I have set up [as translated,] that I have set up.