The Case of Change of Prices of Certain Merchandise before Delivery

1. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Hammad from al-Halabiy who has said the following: “About the case of a man who buys food for a few dirham of which he takes one-half and leaves the other half. Thereafter he comes back when prices have risen or have fallen down, Abu ‘ Abd Allah عليه السلام, has said, ‘If on the day of purchase he prices them and determines the amount then such price is what it is, but if he has taken a certain amount and has left the rest without pricing he must pay the price of the day that he takes whatever it is.”’