Selling the car to its first owner with a less price

Q 4: I sold a car for 10,000 in cash. A month later, the buyer sold it back to me at my car showroom for 7,000 in cash. Is this sale lawful?

(Part No. 13; Page No. 244)  A: If the reality is as you have mentioned, it is permissible for you to buy the car from him whether you charge less or more than the price you already sold it to him for and whether you bought it in cash or on credit.