"The Messenger of Allah said: "If you sell fruits to your brother then the crop fails, it is not permissible for you it takes anything from him. Why would you take the wealth of your brother unlawfully?"'  

قَالَ رَسُولُ اللَّهِ ﷺ إِنْ بِعْتَ مِنْ أَخِيكَ ثَمَرًا فَأَصَابَتْهُ جَائِحَةٌ فَلاَ يَحِلُّ لَكَ أَنْ تَأْخُذَ مِنْهُ شَيْئًا بِمَ تَأْخُذُ مَالَ أَخِيكَ بِغَيْرِ حَقٍّ  

"Whoever sells fruit then his crop fails, he should not take (anything) from his brother." (And he said something along the lines of) "Why would anyone of you consume the wealth of his Muslim brother?"  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ مَنْ بَاعَ ثَمَرًا فَأَصَابَتْهُ جَائِحَةٌ فَلاَ يَأْخُذْ مِنْ أَخِيهِ وَذَكَرَ شَيْئًا عَلَى مَا يَأْكُلُ أَحَدُكُمْ مَالَ أَخِيهِ الْمُسْلِمِ  

the Prophet annulled transaction in the event of crop faioure.  

أَنَّ النَّبِيَّ ﷺ وَضَعَ الْجَوَائِحَ  

"At the time of the Messenger of Allah, a ma suffered loss of some fruit that he had purchased, and his debts increased. The Messenger of Allah said: 'give him charity.' So the people gave him charity, but that was not enough to pay of his debts. The Messenger of Allah said: "Take what you find but you have no right to or than that.""  

أُصِيبَ رَجُلٌ فِي عَهْدِ رَسُولِ اللَّهِ ﷺ فِي ثِمَارٍ ابْتَاعَهَا فَكَثُرَ دَيْنُهُ فَقَالَ رَسُولُ اللَّهِ ﷺ تَصَدَّقُوا عَلَيْهِ فَتَصَدَّقَ النَّاسُ عَلَيْهِ فَلَمْ يَبْلُغْ ذَلِكَ وَفَاءَ دَيْنِهِ فَقَالَ رَسُولُ اللَّهِ ﷺ خُذُوا مَا وَجَدْتُمْ وَلَيْسَ لَكُمْ إِلاَّ ذَلِكَ