الكافي- ط الاسلامية, volume 5, page 176

7. A number of our people have narrated from Ahmad ibn Muhammad ibn Khalid from ‘Uthman ibn ’Isa from Sama’ah who has said the following: “I once asked him (the Imam) about selling fruits. ‘Is it permissible to buy fruits before they are formed?’ He (the Imam) replied, ‘No, it is not permissible unless something else alongside is also purchased, like animal feed or vegetables when the buyer says, ‘I buy this much animal feed and dates from you and this tree in exchange for so and so prices.’ In case, if no fruits appeared the buyers’ capital remains with animal feed or vegetables.’ I then asked him (the Imam) about buying tree leaves. Is it permissible to buy them in three or four kharatat (crops)?’ He (the Imam) said, ‘If you can see leaves on the tree you can buy it for whatever number of cropping you may like.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

8. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from al-Husayn from al-Qasim ibn Muhammad al-Jawhariy from Ali ibn abu Hamzah who has said the following: “This is concerning my question before abu ‘Abd Allah (a.s.), about the case of a man who buys a garden with palm trees and trees in it of which certain ones have become edible and others are not edible yet. He (the Imam) said, ‘It is not harmful when there are edible ones.’ I then asked him (the Imam) about the case of a man who buys a garden with palm trees in it which does not have anything yet except green dates. He (the Imam) said, ‘No, until they Yazhu.’ I then asked, ‘What is yazhu?’ He (the Imam) said, ‘It is when their color changes.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

9. Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from Safwan ibn Yahya from Ya’qub ibn Shu’ayb who has said the following: “This is concerning my question before abu ‘Abd Allah (a.s.), about the case of a man whom I gave twenty dinar for his fruits saying that when your fruits become fruits these dinars are payments, if then I will like I will take the fruits, and if I will not like I will not take them. He (the Imam) said, ‘You cannot give him or stipulate for anything.’ I said, ‘I pray to Allah to keep my soul in service for your cause, he does not say anything and Allah knows his intention.’ He (the Imam) said, ‘It is not valid if it is in his intention (the merchandise must exist).”’

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

10. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Hammad from al-Halabiy who has said the following: “This is about the case of a man who says to another man, ‘Sell to me fruits of your palm tree for two Qafiz (a certain measurement) of dates or less or more...’ specifying the amount as he likes and he sells it. He (the Imam) said, ‘It is not harmful. 5 He (the Imam) said, ‘Dates and half ripe dates of a palm tree are the same and it is not harmful. Mixing old dates and half ripe fresh dates is not valid and so also is true for raisins and grapes.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.