Collection agancy pulled my credit without my consent

I got a phone call yesterday from a guy from a collections that is on my husband credit report,my first thought was how did he get my number when the phone number is UN- listed
i checked my husband credit report and this collections agency pulled his credit which will be there for 2 years cause it was a hard inquiry can they pull your credit this way with out your permission it was for a reposed Mobile home back in 2004
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No
They can't
I need to find the legal doc for that
but that is against ftc law and they should remove it and any further debt.