Threatened by another seller

So I got this message from another seller:

“Stop selling counterfeit ASIN: ******* (He goes on to describe product))!!! If you still don’t remove our ASIN, we will provide Amazon with evidence that your product is not as described or is selling counterfeit products on Amazon. Submit a complaint about your store’s authenticity through the complaint A-Z.”

So the item was not counterfeit. It was the real product new and sealed I got through a liquidation auction. But my store is new and I don’t want to risk getting deactivated so I took it down. Is there any real threat from this guy?

Thanks for any advice.