Esther 4:5

Then called Esther for Hatach, one of the king's chamberlains,
whom he had appointed to attend upon her
Which, according to the Targum, was Daniel ^F1; but it is not likely that Daniel should have lived to this time; however, this officer was not only intrusted with the care of the queen by the king, but she had also an high opinion of him, and therefore employed him in this affair:

and gave a commandment to Mordecai, to know what it was, and why it
was;
what was the reason of his appearing in sackcloth, and why he did not receive the clothes she sent him.