Buying and Selling Food

7. Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from Safwan ibn Yahya from abu Sa‘id al-Mukariy from ‘Abd al-Malik ibn ‘Amr who has said the following: “This is concerning my question before abu ‘Abd Allah عليه السلام, about food that I buy and I measure it when someone witnesses my measuring but I measure it for myself. He then says, ‘Sell it to me.’ I then sell it to him by means of the same measurement that I made for myself. He (the Imam) said, ‘It is not harmful.”’