Selling Alfalfa and Barley in Installments

Question:
I say: Honorable Shaykh, may Allah grant you success. If a person buys a plot of alfalfa or barley and starts taking from it little by little, cutting and taking whatever grows, is this permissible?

Answer:
According to the school of thought, no, it is not permissible to sell alfalfa except in separate sessions. However, according to what the Shaykh al-Islam Ibn Taymiyyah and Ibn al-Qayyim chose, this is a necessity because people need it, and there is no evidence prohibiting it. The default in transactions is that anything is permissible unless there is evidence preventing it, and the interests of the people require this. Yes.