Jabir ibn 'Abdullah · Commercial Transactions (Kitab Al-Buyu)

The Prophet (ﷺ) said: After the grave sins which Allah has prohibited the greatest sin is that a man dies while he has debt due from him and does not leave anything to pay it off, and meets Him with it.

The Messenger of Allah (ﷺ) borrowed a young camel, and when the camels of the sadaqah (alms) came to him, he ordered me to pay the man his young camel. I said: I find only an excellent camel in its seventh year. So the Prophet (ﷺ) said: Give it to him, for the best person is he who discharges his debt in the best manner.

The Messenger of Allah (ﷺ) commanded him to equip an army, but the camels were insufficient. So he commanded him to keep back the young camels of sadaqah, and he was taking a camel to be replaced by two when the camels of sadaqah came.

The Messenger of Allah (ﷺ) forbade to sell spoils of war till they are appointed, and to sell palm trees till they are safe from every blight, and a man praying without tying belt.

I asked Abu Zinad about the sale of fruits before they were clearly in good condition, and what was said about it. He replied: Urwah ibn az-Zubayr reports a tradition from Sahl ibn Abi Hathmah on the authority of Zayd ibn Thabit who said: The people used to sell fruits before they were clearly in good condition. When the people cut off the fruits, and were demanded to pay the price, the buyer said: The fruits have been smitten by…

The Prophet (ﷺ) forbade the sale of fruits till they were clearly in good condition , and (ordered that) they should not be sold but for dinar or dirham except Araya.

The Prophet (ﷺ) forbade selling fruits years ahead, and commanded that unforeseen loss be remitted in respect of what is affected by blight. Abu Dawud said: The attribution of the tradition regarding the effect of blight is one-third of the produce to the Prophet (ﷺ) is not correct. This is the opinion of the people of Medina.

The Prophet (ﷺ) said: If anyone sows in other people's land without their permission, he has no right to any of the crop, but he may have what it cost him.

The Messenger of Allah (ﷺ) forbade muhaqalah, muzabanah, mukhabarah, and mu'awanah. One of the two narrators from Hammad said the word mu'awamah, and other said: "selling many years ahead". The agreed version then goes: and thunya, but gave license for 'araya.

The Messenger of Allah (ﷺ) forbade muzabanah, muhaqalah and thunya except it is known.

The Prophet (ﷺ) used to send Abdullah ibn Rawahah (to Khaybar), and he would assess the amount of dates when they began to ripen before they were eaten (by the Jews). He would then give choice to the Jews that they have them (on their possession) by that assessment or could assign to them (Muslims) by that assignment, so that the (amount of) zakat could be calculated before the fruit became eatable and distributed (among the people).

When Allah bestowed Khaybar on His Prophet (ﷺ) as fay' (as a result of conquest without fighting), the Messenger of Allah (ﷺ) allowed (them) to remain there as they were before, and apportioned it between him and them. He then sent Abdullah ibn Rawahah who assessed (the amount of dates) upon them.