The Book of Zakah
23/44. Chapter:
How Much Is A Sa'?
Sunan an-Nasai
أَخْبَرَنَا أَحْمَدُ بْنُ سُلَيْمَانَ، قَالَ حَدَّثَنَا أَبُو نُعَيْمٍ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ حَنْظَلَةَ، عَنْ طَاوُسٍ، عَنِ ابْنِ عُمَرَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " الْمِكْيَالُ مِكْيَالُ أَهْلِ الْمَدِينَةِ وَالْوَزْنُ وَزْنُ أَهْلِ مَكَّةَ " .
It 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."
Reference : Sunan an-Nasa'i 2520In-book reference : Book 23, Hadith 86English translation : Vol. 1, Book 3, Hadith 2521