The order we use once we have agreed on price (assuming you have clear title):
Provide buyer copy of title in your name so he knows you have the right to sell it. He will also need this if he is getting a loan.
Meet at either a branch of your bank or his if convenient. Have your bank give him/his bank wiring instructions. Once funds confirmed by your bank, complete the paper work to transfer. In Texas forms are online. If no convenient branch of either your or his bank, have your banker call when funds have arrived.
Once funds are in your account, they can not be drawn back/cancelled.