Prohibition on buying goods from their sellers before they reach the market
Question

                What is the ruling on meeting business owners in the street before they bring their good into their stores and buying from them?.
Praise be to Allah.
    It is haraam to meet the sellers of goods in the streets 
    before they reach the places that are prepared for the selling and buying of 
    goods, because that comes under the same heading as meeting riders coming 
    in, which is forbidden, because of the hadeeth that was narrated by Imam 
    Ahmad, in which it says: “Do not intercept goods before they reach the 
    market.” It was also narrated by al-Bukhaari in his Saheeh (4/373) 
    from ‘Abd-Allaah ibn ‘Umar (may Allaah be pleased with him). And al-Bukhaari 
    narrated in his Saheeh from Naafi’ that ‘Abd-Allaah ibn ‘Umar said: 
    “We used to meet the riders and buy food from them, then the Prophet  
    (peace and blessings of Allaah be upon him) forbade us to buy it until it 
    reached the food market. According to another version narrated from Naafi’, 
    ‘Abd-Allaah said: They used to buy food at the top end of the market, and 
    sell it where they bought it. But the Messenger of Allaah  (peace and 
    blessings of Allaah be upon him) forbade them to sell it where they had 
    bought it until they had moved it. According to a report narrated by Muslim: 
    The Messenger of Allaah  (peace and blessings of Allaah be upon him) 
    said: “Do not intercept incoming merchants; if a person intercepts (an 
    incoming merchant) and buys from him, the merchant has the choice of taking 
    it back when he reaches the market.” It is haraam to intercept them, and 
    whoever intercepts them before they reach the market is a sinner who is 
    disobeying Allaah, may He be exalted, if he knows of the prohibition, 
    because this involves betraying the seller and harming the people in the 
    marketplace. If this is proven and the seller has been cheated, i.e., he 
    sold it at a lower price which is not the usual price in the market, then 
    the seller has the choice of either going ahead with the sale or canceling 
    the sale. And that comes under the heading of giving the choice when a 
    person has been cheated.” End quote.