Is it permissible to sell Zamzam water?
Question

                I have a question regarding selling and buying of zamzam water. I heard from somebody that selling zamzam water is not permissible. I want to know if this is true and can somebody bring the zamzam water from saudi arabia and sell it in other countries? please answer with references from hadith.
Praise be to Allah.
      The basic principle is that it is not permissible to sell 
      water so long as it is still in its spring or stream. But if someone 
      collects it and puts it in a vessel, for example, then he may sell it and 
      there is no difference of opinion among the scholars. 

    Ibn Qudaamah (may Allah have mercy on him) said in 
    al-Mughni (4/215): 

    With regard to what he collects in his vessel of water, he 
    takes possession of it thereby and he has the right to sell it, and there is 
    no difference of opinion among the scholars. … Based on that, it became 
    customary in some regions to sell water in vessels without anyone objecting 
    to that, and no one has the right to drink from it or to do wudoo’ or to 
    take any of it without the permission of its owner. The same applies if he 
    comes to his own well or a public well and draws water in a bucket or by any 
    other means; whatever he collects of water becomes his property and he may 
    sell it, because it became his property when he acquired it in his vessel. 
    Ahmad said: It is forbidden to sell water that is still in the well and 
    water that is still flowing in the spring, but it is permissible to sell the 
    well itself, or the spring, and the one who buys it has more right to its 
    water. 

    Shaykh al-Fawzaan (may Allah preserve him) was asked: Is it 
    permissible to sell water and when? 

    He replied:

    That is subject to further discussion. If a person has 
    collected water in his vessel or in his pond, then he has taken possession 
    of it and it is permissible for him to sell it, because he has collected it 
    and it has come into his possession, and he has expended effort to acquire 
    it, so it has become his property. 

    But if the water is still in the well or river or stream that 
    runs through his property, then this is the subject of a difference of 
    opinion among the scholars. The correct view is that it is not permissible 
    for him to sell it; rather he is more entitled to benefit from it than 
    anyone else, but he does not have the right to prevent others from 
    benefiting from it in ways that do not harm him or his property, because the 
    Prophet (blessings and peace of Allah be upon him) forbade selling surplus 
    water. End quote. 

    Al-Muntaqa, 3/13 

    No distinction is made in this regard between Zamzam water or 
    any other water. 

    Shaykh Ibn Baaz (may Allah have mercy on him) said: 

    There is nothing wrong with selling Zamzam water or 
    transporting it from Makkah. End quote. 

    Majmoo‘ Fataawa Ibn Baaz 
    (16/138) 

    And Allah knows best.