Unlocked Iphone Help

Hi everybody,
I just had a quick question, So I am selling my AT&T iphone to someone needed it to be unlocked, I recently today called to AT&T and they unlocked it but won't go through for another 48 hours. I need to sell the iphone today. I wanted to know if it's safe to still sell my iphone which is pending to unlocked. It's already been factory restored and everything so no information is currently on it. I just want to make sure the buy doesn't see anything when he plugs it into his itunes for verify the unlock.

Thanks for the input :)