Hadith 4599
Chapter 55: Selling food before taking possession of it - كتاب البيوع
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنِ ابْنِ طَاوُسٍ، عَنْ طَاوُسٍ، قَالَ سَمِعْتُ ابْنَ عَبَّاسٍ، يَقُولُ أَمَّا الَّذِي نَهَى عَنْهُ رَسُولُ اللَّهِ صلى الله عليه وسلم أَنْ يُبَاعَ حَتَّى يُسْتَوْفَى الطَّعَامُ .
It was narrated that Tawus said:
"I heard Ibn 'Abbas say: 'As for that which the Messenger of Allah forbade, (it is) selling before taking possession of food."'
Reference : Sunan an-Nasa'i 4599
In-book reference : Book 44, Hadith 151