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."' Translation Not Available

Book Ref: Sunan An Nisai Book 44 Hadith 4599
Web Ref:  Sunan An Nisai Vol 5 Book 44 Hadith 4603

---