Commercial Transactions (Kitab Al-Buyu)

Dawud :: Book 22 : Hadith 3334

Narrated Abdullah ibn Umar:

The Prophet (peace_be_upon_him) said: (The standard) weight is the weight of the people of Mecca, and the (standard) measure is the measure of the people of Medina.

Source materials are from the University of Southern California MSA site
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