After Imam Mahdi rises and establishes the rule of justice, the earth will yield to him her treasures of mineral deposits and crops. The shares that rightfully belong to the destitute and poor will be exacted from the rich and the oppressors to be justly distributed, as the result of which no poor person will remain, to the extent that there will be no use for charities and Zakat. Imam Sādiq (the sixth Imam of Shia) says, "The world will be revitalized by the implementation of justice, the sky will send down abundant rain, trees will reveal their fruit, and the earth will deliver her plants, embellishing herself for her inhabitants."
At that time, people will be so well-off that it has been narrated from the Prophet to have said, "People will be searching for someone poor who would accept charity or gifts from them, to no avail; they will put aside the Zakat of their wealth, but they will not find anyone to give it to, for all will be made well-off by Allah grace."
