It looks like you are trying to discredit the poster or accuse them of dishonesty without adding new information to the thread.
If they are wrong, you can trivially demonstrate that with a link of your own.
If you want to accuse them of lying or being mistaken, you can provide a link. If their claim is implausible, you can comment on why.
Just asking for a link without adding one of these doesn’t add anything to the conversation except a demand they do work.