That's a "legal" question, and I'm not qualified to answer that since I'm not a lawyer.
I would think it would be difficult for someone to force you to sell, simply because they brought you your asking price. There might be other aspects of the offer that don't suit you.
However, it's possible that if you get a full-priced offer, with no contingencies, depending on the listing agreement you've signed, you might owe commission to your real estate agency. Read your agreement carefully.