Is the broker's fee his right or the owner's?

Question:
Regarding the broker's effort: is it the broker's right or the owner's right?

Answer:
This depends on who it was stipulated upon: if it was stipulated upon the seller, it is upon the seller; and if it was stipulated upon the buyer, it is upon the buyer. The broker is a middleman.
Q: This matter is settled, but the point of the question here is that some brokers sell the owner's goods at a good price and excellent profit, and on top of that, this wealthy owner stipulates that half of the commission belongs to him?
A: If he does not give him more than half, the Muslims are bound by their conditions. So if the commission for this effort is one and a half pounds per hundred, and he says, "I will not give him more than one and a quarter riyals," there is no harm. The Muslims are bound by their conditions, because he may have a lot of wealth, so half of the commission benefits him.
Q: No, the buyer pays the full commission, but the owner...?
A: The Muslims are bound by their conditions, so if they stipulated that, there is no harm.