من لا يحضره الفقيه, volume 3, page 212

Hadith.3789 - Zur'ah narrated from Sama'ah, who said: I asked him about selling fruits-whether it is permissible to buy them before their buds appear. Imam (as) said: "No, except if he buys something along with it, like fresh greens or vegetables, and says: 'I am buying these greens, this palm tree, and this tree for such and such price.' If the fruit does not emerge, the buyer's capital will be in the greens and vegetables." Imam (as) was also asked about buying tree leaves, whether it is permissible to buy them for three or four harvests. Imam (as) said: "If you see the leaves on the tree, then buy as many harvests as you wish."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.3790 - Al-Qasim bin Muhammad narrated from Ali bin Abi Hamzah, who said: I asked Abu Abdillah (as) about a man who bought an orchard that contained palm trees and other trees, some of which had already borne fruit and others had not yet borne fruit. Imam (as) said: "There is no harm in it if there are trees that have already borne fruit."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.3791 - Al-Hasan bin Ali bin Bint Ilyas narrated: I asked Abu Al-Hasan (as): Is it permissible to sell palm trees when they have borne fruit? Imam (as) said: "It is not permissible to sell them until they ripen." I said: What is meant by ripening, may I be your ransom? Imam (as) said: "When they turn red or yellow."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.3792 - Ya'qub bin Shu'ayb narrated: I asked Abu Abdullah (as): I give a man twenty dinars and say to him, "If your fruit reaches a certain value, it is mine for that price. If I agree, I will take it, and if I dislike it, I will leave it." Imam (as) said: "Can you not give it to him without making any condition?" I said: May I be your ransom! What if he does not specify anything, but Allah (swt) knows his intention? Imam (as) said: "It is not permissible if that is his intention."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.