What is the ruling on buying a shop after it has been offered to another person and the seller did not accept his offer?

Question:
The questioner says: My cousin has a shop with goods in it. He wanted to sell the goods and rent out the shop. A man came to buy the goods, and I came to rent the shop. My cousin and this man disagreed on the price. The man asked me to intercede for him so that he could buy it for a lower price, so I interceded for him. But the man wanted to buy it for a very low price, so my cousin refused to sell it to him. He then offered it to me, and I agreed on the condition that he give the man three days to see if he would buy it, so that I would not be accused of wrongdoing. That happened, but the man did not buy it, so I bought it. Is this permissible for me?

Answer:
Yes, there is nothing wrong with that, as long as it is offered for sale, offered to whoever offers more. It is permissible for you to offer more and buy it. There is nothing wrong with that. Yes.