And with the same chain of narration, it is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that he used to report from Sayyiduna Zayd bin Thabit (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) permitted the owner of dates on the date palm to sell them by estimation (Uka).

And with the same chain of narration, it is reported from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever buys food (grain), he should not sell it further until he has taken full possession of it."

And with this same chain (it is narrated from Sayyiduna Ibn Umar, may Allah be pleased with them both) that in the time of the Messenger of Allah, peace and blessings be upon him, we used to buy food (grain, produce), so he, peace and blessings be upon him, would send a man to us and command that before selling it again, we should move it from the place where we bought it to another place.

And with the same chain of narration (from Sayyiduna Ibn Umar, may Allah be pleased with them both), it is narrated that the Messenger of Allah, peace and blessings be upon him, said: "Whoever buys food (grain, etc.), he should not sell it further until he has taken possession of it."

And with this same chain (it is narrated from Sayyiduna Ibn Umar, may Allah be pleased with them both) that the Messenger of Allah, peace and blessings be upon him, forbade the sale of the unborn offspring in the womb of an animal. And this was a transaction that the people of ignorance used to make with each other. A man would make a deal for a she-camel that when the she-camel gives birth to a female, then whatever camel is born from her, that will be mine.

Hanzalah bin Qais al-Zuraqi (may Allah have mercy on him) asked Sayyiduna Rafi‘ bin Khadij (may Allah be pleased with him) about renting land. So Sayyiduna Rafi‘ (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) forbade that. He asked: For gold and silver? So Sayyiduna Rafi‘ (may Allah be pleased with him) said: There is no harm in it for gold and silver.

And with the same chain of narration (from Sayyiduna Ibn Umar, may Allah be pleased with them both), it is narrated that the Messenger of Allah, peace and blessings be upon him, said: "Whoever sells date palm trees that have been pollinated, then the seller is entitled to their fruit, unless the buyer stipulates a condition that the fruit will be his."

And with the same chain of narration (it is narrated from Sayyiduna Ibn Umar, may Allah be pleased with them both) that the Messenger of Allah, peace and blessings be upon him, said: "Do not make a purchase over the purchase of another."

And with the same chain of narration, it is narrated from (Sayyiduna Abu Hurairah, may Allah be pleased with him) that the Messenger of Allah, peace and blessings be upon him, said: "Do not go out to meet traders bringing goods from outside before they reach the market to buy their goods, and none of you should make a deal over the deal of his brother, and do not bid falsely (to deceive), and a townsman should not sell for a villager, and do not withhold milk in the udders of camels and goats (to deceive buyers). Then, if someone buys such an animal after that, he has two options after milking it: if he is pleased with it, he may keep the animal with him (and keep the deal), and if he dislikes it, he may return the animal along with a sa‘ (measure) of dates."

And with the same chain of narration, it is narrated from (Sayyiduna Ibn Umar, may Allah be pleased with them both) that the Messenger of Allah, peace and blessings be upon him, forbade najsh (artificially raising the price by false bidding).