What is the ruling on a person saying to another, "I have another property for you, better than this one, and it's directly with me," if he knows that the other person wants to buy a property?

The Muslim's bidding over his brother's bid after mutual consent and reliance is prohibited, due to what it leads to in terms of inciting conflict and compromising integrity. This refers to a situation where two parties agree on a price and become settled, then a third party comes to dissuade one of them from the deal for their own benefit. This prohibition is agreed upon if the price has been settled and one party has relied on the other, especially if the mutual consent occurred explicitly. If it was not explicit but indicated by a clear indication, there are two views regarding its prohibition, the most correct of which is that it is not prohibited. However, if he remained silent, the majority opinion is that it is not prohibited. If this buyer has relied on the property owner and they have mutually agreed, it is not permissible for another to approach him and offer a better property. However, if it is merely a bid, there is no harm in it, though refraining from it is preferable. And if it is merely an intention, there is absolutely no harm in it.