I've been seeing this circulating a lot amongst the Muslim community. I've tried to find credible source through use of Google but I couldn't find much that said Mehmet II purchased Hagia Sophia with his own money.

I checked Wikipedia although it's not the most reliable but even that has no statements saying it was purchased. The only thing I'm getting is that when Ottomans conquered the land, it was heavily looted.

Could someone explain? Thank you.

Edit: Why am I being down voted for asking a question?