He bought something on the Internet but he did not accept it because it was defective. Is he obliged to pay the shipping costs?

If the seller is a group of people, and they keep the down payment after the purchaser cancels the purchase, how should they divide it among themselves?

Ruling on putting a car on the market and offering it for sale in the auction, when he does not really want to sell it there; rather he only wants to find out its price

Ruling on paying for a product by cheque at a higher price

Ruling on buying and selling used clothing from the west

It is not permissible to sell or buy a waqf

Ruling on buying an apartment for which money is still owed to the Housing and Development Bank

Ruling on selling aphrodisiacs on the Internet

Ruling on joint purchase of property with the bank, after which the bank sells its share to the customer on the basis of muraabahah (profit-sharing)

It is not permissible to buy pork and feed it to non-Muslims