Question
If I have a piece of gold and I want to sell it, and I offer it at a price higher than the price per gram of gold, while clarifying this to the buyer, for example, if the price per gram is 23 and I say I will sell it to you at 25, and I inform him that the price is 23, or the opposite, I know someone who has a piece of gold and wants to sell it to a gold trader, and I tell him I will buy it at the official price per gram, knowing that the trader buys for less than the selling price, does this fall under the hadith 'No one of you should sell over the sale of his brother'?
Answer
I say, and with God's help: The meaning of the hadith is that it is disliked to the point of prohibition for one to sell over the sale of his brother after they have mutually agreed on the sale, and this is not what you mentioned, and God knows best.