Sunan an-Nasa'i 4594
سنن النسائي#4594Sahihأَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، عَنِ الْمُلاَئِيِّ، عَنْ سُفْيَانَ، ح وَأَنْبَأَنَا مُحَمَّدُ بْنُ إِبْرَاهِيمَ، قَالَ أَنْبَأَنَا أَبُو نُعَيْمٍ، عَنْ سُفْيَانَ، عَنْ حَنْظَلَةَ، عَنْ طَاوُسٍ، عَنِ ابْنِ عُمَرَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " الْمِكْيَالُ عَلَى مِكْيَالِ أَهْلِ الْمَدِينَةِ وَالْوَزْنُ عَلَى وَزْنِ أَهْلِ مَكَّةَ " . وَاللَّفْظُ لإِسْحَاقَ .
It was narrated that Ibn 'Umar said:"The Messenger of Allah said: "Volume is to be measured according to the system of the people of Al-Madinah, and weight is to be measured according to the system of the peole of Makkah."' (Sahih) This is the wording of Ishaq (one of the narrators)
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 44:146