سُنَنُ النَّسَائِيِّ
Sunan an-Nasa’i 4597
The Book of Financial Transactions
Selling food before taking possession of it
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.""
Sunan an-Nasa'i, 4597Sahih (Darussalam)