Narrated Ali ibn AbuTalib:

A time is certainly coming to mankind when people will bite each other and a rich man will hold fast, what he has in his possession (i.e. his property), though he was not commanded for that. Allah, Most High, said: "And do not forget liberality between yourselves." The men who are forced will contract sale while the Prophet ﷺ forbade forced contract, one which involves some uncertainty, and the sale of fruit before it is ripe.

حَدَّثَنَا مُحَمَّدُ بْنُ عِيسَى، حَدَّثَنَا هُشَيْمٌ، أَخْبَرَنَا صَالِحُ أَبُو عَامِرٍ، - قَالَ أَبُو دَاوُدَ كَذَا قَالَ مُحَمَّدٌ - حَدَّثَنَا شَيْخٌ، مِنْ بَنِي تَمِيمٍ قَالَ خَطَبَنَا عَلِيُّ بْنُ أَبِي طَالِبٍ - أَوْ قَالَ قَالَ عَلِيٌّ قَالَ ابْنُ عِيسَى هَكَذَا حَدَّثَنَا هُشَيْمٌ، - قَالَ سَيَأْتِي عَلَى النَّاسِ زَمَانٌ عَضُوضٌ يَعَضُّ الْمُوسِرُ عَلَى مَا فِي يَدَيْهِ وَلَمْ يُؤْمَرْ بِذَلِكَ قَالَ اللَّهُ تَعَالَى { وَلاَ تَنْسَوُا الْفَضْلَ بَيْنَكُمْ } وَيُبَايَعُ الْمُضْطَرُّونَ وَقَدْ نَهَى النَّبِيُّ ﷺ عَنْ بَيْعِ الْمُضْطَرِّ وَبَيْعِ الْغَرَرِ وَبَيْعِ الثَّمَرَةِ قَبْلَ أَنْ تُدْرِكَ .