Weighing goods by the seller or the giver
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ ـ رضى الله عنهما ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " مَنِ ابْتَاعَ طَعَامًا فَلاَ يَبِيعُهُ حَتَّى يَسْتَوْفِيَهُ ".
Narrated `Abdullah ibn `Umar: Allah's Messenger (ﷺ) said, "He who buys foodstuff should not sell it till he is satisfied with the measure with which he has bought it.