Hot answers tagged holy-objects
I once heard this question asked at an Arachim function. The answer given was that although Koresh had the utensils returned, not all of them made it back and therefore Achashveirosh used the ones that he still had. I have not seen a written source for this though.
Meseches Sofrim 20 seems to imply as much. One may not light an old lamp; one who only has an old lamp may whiten it well in fire, and that is permitted. cf this lecture (around the 22 min mark)
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