أَخْبَرَنَا مُحَمَّدُ بْنُ رَافِعٍ، قَالَ حَدَّثَنَا عَبْدُ الرَّزَّاقِ، قَالَ حَدَّثَنَا مَعْمَرٌ، عَنِ ابْنِ طَاوُسٍ، عَنْ أَبِيهِ، عَنِ ابْنِ عَبَّاسٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ مَنِ ابْتَاعَ طَعَامًا فَلاَ يَبِيعُهُ حَتَّى يَقْبِضَهُ ‏"‏ ‏.‏ قَالَ ابْنُ عَبَّاسٍ فَأَحْسَبُ أَنَّ كُلَّ شَىْءٍ بِمَنْزِلَةِ الطَّعَامِ ‏.‏

It was narrated that Ibn 'Abbas said: "The Messenger of Allah said: 'Whoever buys food let him not sell it until he takes possession of it. Ibn 'Abbas said: "I think the same applies to everything else as to food." Translation Not Available

Book Ref: Sunan An Nisai Book 44 Hadith 4600
Web Ref:  Sunan An Nisai Vol 5 Book 44 Hadith 4604