Mishna, Tamid chapter 3, in a loose translation:
Those who merited removing the ashes from the inner altar and the candelabrum would precede. They had four tools in their hands: the basket, the pitcher, and two keys.… [They used the keys to open the doors of the main room of the Temple, and entered. Then] the one who merited removing the ashes from the inner altar entered, took the basket, put it before him, and would take handfuls and place them in it; at the end, he swept the rest into it. He left it there and exited. [And the candelabrum person did his job with the pitcher.]
On "he swept the rest into it", Tif'eres Yisrael (73) says:
… he swept the ashes into the basket with a broom.
Where'd he get the broom from?
I can think of a few possibilities, and wonder which of them is true if any, or what the true explanation is:
- He carried it in with him, but it was unimportant and so unlisted among the tools brought in.
- He carried it in with him, but in the basket rather than directly in his hand, so it was unlisted among the tools brought in "in their hands".
- It was stored near the altar.