الكافي- ط الاسلامية, volume 5, page 184

1. Ali ibn Ibrahim has narrated from his father from ibn abu ‘ Umayr from Hammad from al-Halabiy who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘It is not proper to sell with a Sa‘ (a certain measuring device) which is not in use in the city (land).’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

2. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from certain persons of his people from Aban from Muhammad al- Halabiy who have said the following: “Abu ‘Abd Allah (a.s.), has said, ‘It is not lawful for one to sell with a Sa‘ which is not in use in a city. A man may hire a camel man and measures with a device of his home which perhaps is smaller than the mud (a certain measurement) of the market- place. If he says it is smaller than the mud of the market he does not accept unless he guarantees and takes responsibility thereof.’ He (the Imam) said, ‘There must be one mud. Taking responsibility also serves this purpose.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

3. Muhammad ibn Yahya has narrated from Muhammad ibn Khalid al-Barqiy from Sa‘d ibn Sa‘d who has narrated the following: “I once asked abu al-Hassan (a.s.), about a people who make al-Qufzan (measuring devices) small with which they sell. He (the Imam) said, ‘They are of the people who cause losses in their belongings.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

1. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Muhammad ibn Yahya from Ghiyath ibn Ibrahim who has said the following: “Abu ‘ Abd Allah (a.s.), has said that ‘Amir al-Mu’minin has said, ‘Advance payment for a merchandise is not harmful if it is for known measures and appointed time. Advance payment is not made except for threshing and the time of harvest.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.