Arabic (Original)
حَدَّثَنَا عَفَّانُ حَدَّثَنَا وُهَيْبٌ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ طَاوُسٍ عَنْ أَبِيهِ عَنِ ابْنِ عَبَّاسٍ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ نَهَى أَنْ يَبِيعَ الرَّجُلُ طَعَامًا حَتَّى يَسْتَوْفِيَهُ قَالَ فَقُلْتُ لَهُ كَيْفَ ذَلِكَ قَالَ ذَلِكَ دَرَاهِمُ بِدَرَاهِمَ وَالطَّعَامُ مُرْجَأٌ.
English Translation
The Messenger of Allah (peace be upon him) prohibited a man from selling food until he has received it in full. I asked him: 'How is that?' He said: 'That is (like exchanging) dirhams for dirhams while the food is deferred.'