Although there are a number of sources of where Haman had found a beam 50 cubits tall to use as a gallows, some say it was a beam from the teyva, some say it was a thorny tree etc but, there is an interesting anecdote found here in Pirkei D'Rabbi Eliezer that says the beam was actually from the kodesh hakodashim.
Is this mentioned or referenced anywhere else?
Why would there be such a beam in the kodesh hakodashim?
Lastly, if this is allegorical, what is the lesson to be learned?
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