Musannaf Ibn Abi Shaybah

It is narrated from Hasan that the Noble Prophet (peace and blessings be upon him) forbade the sale of food until two sa’ have been measured out in it. Then, both the excess and the deficiency will belong to the buyer.

It is narrated from Hazrat Ubaidah that the sale of such food was prohibited in which two sa’ (a measure) are not prevalent. The excess will be for the buyer and the loss will be upon the seller.

Hazrat Ibn Sirin and Hasan were asked that if a person has bought food, can he sell it by measure? They replied: No, not until it has been weighed out in two sa’ (measures); then both any increase and decrease will belong to the buyer.

It is narrated from Hazrat Sha'bi and Hazrat Hakam that if a person buys food and then it turns out to be more, it was said: If it was a mistake, then return it; if there is excess, return that as well.

Hazrat Muraq Al-Ajli says that we sent a boat from Ahwaz to Basra which carried thirty kur of goods. And those goods were only what remained between two nails (i.e., the goods that are left or fall when moving from one nail to another).

Hazrat Ata says that if you make a sale of food, then if it turns out to be more, the excess is for you, and if there is a loss, it is upon the seller.