The Messenger of Allah ﷺ as saying: If you were to sell dried dates to your brother and they were smitten by blight, it will not be allowable for you to take your brother's property unjustly. (Using translation from Abū Dāʾūd 3470)   

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ «مَنْ ابْتَاعَ ثَمَرَةً فَأَصَابَتْهُ جَائِحَةٌ فَلَا يَأْخُذَنَّ مِنْهُ شَيْئًا بِمَ تَأْخُذُ مَالَ أَخِيكَ بِغَيْرِ حَقٍّ؟»