Hadith 4597
Chapter 55: Selling food before taking possession of it - كتاب البيوع
أَخْبَرَنَا أَحْمَدُ بْنُ حَرْبٍ، قَالَ حَدَّثَنَا قَاسِمٌ، عَنْ سُفْيَانَ، عَنِ ابْنِ طَاوُسٍ، عَنْ أَبِيهِ، عَنِ ابْنِ عَبَّاسٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنِ ابْتَاعَ طَعَامًا فَلاَ يَبِيعُهُ حَتَّى يَكْتَالَهُ " .
It was narrated that Ibn 'Abbas said:
"The Messenger of Allah said: 'Whoever buys food, let him not sell it until he has checked its weight.""
Reference : Sunan an-Nasa'i 4597
In-book reference : Book 44, Hadith 149