´It was narrated that Usaid bin Zuhair said:` "Rafi' bin Khadij came to us and said: 'The Messenger of Allah has forbidden for you Al-Haql. Al-Haql is the third and the fourth. And Al-Muzabanah. Al-Muzabanah is to buy what is at the top of the date-palm trees in return for a certain number of Wasqs of dried dates.'"
Explanation & Benefits
Hafiz Muhammad Ameen
The reason for prohibiting muzabanah is that there is a possibility of harm to one of the parties. It is not known whether the fruit present on the tree will be equal to the specified dry fruit or not. Due to this possibility, it has been prohibited so that no one is wronged.
Source: Sunan Nasa'i: Translation and Benefits by Shaykh Hafiz Muhammad Amin Hafizullah, Page: 3894