وَعَنِ ابْنِ عَبَّاسٍ
قَالَ: أَمَّا الَّذِي نَهَى عَنْهُ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَهُوَ الطَّعَامُ أَنْ يُبَاعَ حَتَّى يُقْبَضَ. قَالَ ابْنُ عَبَّاسٍ: وَلَا أَحْسِبُ كُلَّ شَيْءٍ إِلاَّ مثلَه
Ibn Abbas said what the Prophet (sallallahu alayhi wa sallam) forbade was that grain should be sold before it had been received. Ibn Abbas said, “I do not think this applies to every commodity, but only to things of that type.”