Is it permissible to give to a needy brother from the money designated for redressing injustices?

The seller must be fair to buyers and adhere to the price listed on the medicine. It is not permissible to sell it for more than that. As for a small increase, it depends on the common practice of the people in the country. If they overlook it due to its small value, then it is permissible to take it. But if they demand it back, the seller must return it. If he is unable to return it, then giving the buyer a box of tissues or a piece of candy in exchange is a good gesture. To clear one's conscience from the increases taken from buyers without their consent, it is recommended to give charity on their behalf with an amount of money. The charity can be given to a needy brother.