that his father said. "I saw those, who used to buy foodstuff without measuring or weighing in the life time of the Prophet ﷺ being punished if they sold it before carrying it to their own houses."  

رَأَيْتُ الَّذِينَ يَشْتَرُونَ الطَّعَامَ مُجَازَفَةً يُضْرَبُونَ عَلَى عَهْدِ رَسُولِ اللَّهِ ﷺ أَنْ يَبِيعُوهُ حَتَّى يُئْوُوهُ إِلَى رِحَالِهِمْ  

Ibn ʿAbbas said, "Messenger of Allah ﷺ forbade the selling of foodstuff before its measuring and transferring into one's possession." I asked Ibn ʿAbbas, "How is that?" Ibn ʿAbbas replied, "It will be just like selling money for money, as the foodstuff has not been handed over to the first purchaser who is the present seller."  

أَنَّ رَسُولَ اللَّهِ ﷺ نَهَى أَنْ يَبِيعَ الرَّجُلُ طَعَامًا حَتَّى يَسْتَوْفِيَهُ قُلْتُ لاِبْنِ عَبَّاسٍ كَيْفَ ذَاكَ قَالَ ذَاكَ دَرَاهِمُ بِدَرَاهِمَ وَالطَّعَامُ مُرْجَأٌ قَالَ أَبُو عَبْد اللَّهِ مُرْجَئُونَ مُؤَخَّرُونَ  

The Prophet ﷺ said, "He who buys foodstuff should not sell it till he has received it."  

قَالَ النَّبِيُّ ﷺ مَنِ ابْتَاعَ طَعَامًا فَلاَ يَبِعْهُ حَتَّى يَقْبِضَهُ  

That the latter said, "Who has change?" Talha said, "I (will have change) when our storekeeper comes from the forest." Malik bin Aus narrated from ʿUmar bin Al-Khattab: Messenger of Allah ﷺ said, "The bartering of gold for gold is Riba (usury), except if it is from hand to hand and equal in amount, and wheat grain for wheat grain is usury except if it is form hand to hand and equal in amount, and dates for dates is usury except if it is from hand to hand and equal in amount, and barley for barley is usury except if it is from hand to hand and equal in amount."  

طَلْحَةُ أَنَا حَتَّى يَجِيءَ خَازِنُنَا مِنَ الْغَابَةِ قَالَ سُفْيَانُ هُوَ الَّذِي حَفِظْنَاهُ مِنَ الزُّهْرِيِّ لَيْسَ فِيهِ زِيَادَةٌ فَقَالَ أَخْبَرَنِي مَالِكُ بْنُ أَوْسٍ سَمِعَ عُمَرَ بْنَ الْخَطَّابِ ؓ يُخْبِرُ عَنْ رَسُولِ اللَّهِ ﷺ قَالَ الذَّهَبُ بِالذَّهَبِ رِبًا إِلاَّ هَاءَ وَهَاءَ وَالْبُرُّ بِالْبُرِّ رِبًا إِلاَّ هَاءَ وَهَاءَ وَالتَّمْرُ بِالتَّمْرِ رِبًا إِلاَّ هَاءَ وَهَاءَ وَالشَّعِيرُ بِالشَّعِيرِ رِبًا إِلاَّ هَاءَ وَهَاءَ