The Book of Financial Transactions
44/55. Chapter:
Selling food before taking possession of it
Sunan an-Nasai
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 4599In-book reference : Book 44, Hadith 151English translation : Vol. 5, Book 44, Hadith 4603