عَنِ ابْنِ عُمَرَ قَالَ: نَهَى رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَنِ الْمُزَابَنَةِ: أَنْ يَبِيع تمر حَائِطِهِ إِنْ كَانَ نَخْلًا بِتَمْرٍ كَيْلَا وَإِنْ كَانَ كرْماً أنْ يَبيعَه زبيبِ كَيْلَا أَوْ كَانَ وَعِنْدَ مُسْلِمٍ وَإِنْ كَانَ زَرْعًا أَنْ يَبِيعَهُ بِكَيْلِ طَعَامٍ نَهَى عَنْ ذلكَ كُله. مُتَّفق عَلَيْهِ. وَفِي رِوَايَةٍ لَهُمَا: نَهَى عَنِ الْمُزَابَنَةِ قَالَ: " والمُزابنَة: أنْ يُباعَ مَا فِي رُؤوسِ النَّخلِ بتمْرٍ بكيلٍ مُسمَّىً إِنْ زادَ فعلي وَإِن نقص فعلي)

He reported God’s Messenger as saying, “Do not go out to meet what is being brought [to market for sale]. If anyone does so and buys some of it, when its owner comes to the market he has the choice [of cancelling the deal].* * He may find he could have a higher price in the market, and so he has the right to cancel the deal.Muslim transmitted it.