Abdullah bin Umar reported,

The Messenger of Allah ﷺ said, "The standard of weight is the weight used by the people of Mecca, and the standard of measure is the measure used by the people of Medina."

Azami 5438

Sahih

عن ابن عمر قال

قال رسول الله ﷺ: الوزن وزن أهل مكة، والمكيال مكيال أهل المدينة.

الأعظمي 5438صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Sales
Chapter
Rulings on sales and trade
Section
Weights are the weights of the people of Makkah and measures are the measures of the people of Madinah
Numbering
Jami al-Kamil 5438 (2nd edition)
Azami 5438