Narrated Ibn 'Umar: The Prophet ﷺ forbade the sale of fruits on the tree for fruits by measure, and sale of grapes for raisins by measure, and sale of harvest for wheat by measure.
This hadith teaches us to always be fair when dealing with others in business transactions and to never take advantage of someone else’s ignorance or lack of knowledge about measurements or weights. It also teaches us to always strive for justice and fairness in all our dealings with others regardless of their social status or economic standing.