Hadith.3881 - Sama'ah asked him about a man who entered into a farming partnership with a Muslim or a covenant holder (Mu'ahid) and spent on it, but then decided to sell it.
Imam (as) said: "He may sell it for silver coins, for its origin is food."
Al-Kāfi #1045“Upon my asking him (the Imam) (a.s.), about the case of a man who establishes a plantation, who is a Muslim or tax payer, maintains it and...