Sunan an-Nasa'i 2520
سنن النسائي#2520SahihIt was narrated from Ibn 'Umar that the Prophet (ﷺ) said:"The measure (to be used) is the measure of the people of Al-Madinah, and the weight (to be used) is the weight of the people of Makkah
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
In-book reference: 23:86