[Machine] On the authority of Ruwaifi' bin Thabit, he said during the Battle of Uhud: "The Messenger of Allah ﷺ said during the Battle of Khaybar: 'Indeed, it has reached me that you people transact with half or two-thirds of the weight, and indeed, it is not permissible except to transact the weight with its weight, and the measure with its measure.'"  

عَنْ رُوَيْفِعِ بْنِ ثَابِتٍ عِي غَزْوَةَ أُنَاسٍ قَبْلَ الْمَغْرِبِ يَقُولُ إِنَّ رَسُولَ اللهِ ﷺ قَالَ فِي غَزْوَةِ خَيْبَرَ «إِنَّهُ بَلَغَنِي أَنَّكُمْ تَتَبَايَعُونَ الْمِثْقَالُ بِالنِّصْفِ أَوِ الثُّلُثَيْنِ وَإِنَّهُ لَا يَصْلُحُ إِلَّا الْمِثْقَالُ بِالْمِثْقَالِ وَالْوَزْنُ بِالْوَزْنِ»  

"بَلَغَنِى أَنَّكُمْ تَتَبَايَعُونَ المِثْقَال بِالنِّصْفِ وَالثُّلثَينِ، فإنَّهُ لَا يَصِحُّ المِثْقالُ إِلَّا بالمِثْقَال، والوَرِقُ بِالوَرِقِ".