the Prophet, peace and blessings be upon him, against undercutting another Muslim’s sale, outbidding his purchase, and artificially bidding up a price without intending to buy.1 Agreed upon.2
3—(This also includes)3: his prohibition, peace and blessings be upon him, against separating enslaved blood relatives4 from one another.5
4—This also applies when you know that the purchaser will use what he buys to commit a sin, such as when walnuts and eggs are bought for gambling, or weapons are sold for use in civil strife or to highway robbers.
5—He6, peace and blessings be upon him, also forbade intercepting incoming goods, saying: “Do not intercept incoming goods. If anyone does so and buys from their seller, then when the seller reaches the market, he has the option to rescind the sale.” Reported by Muslim.7
(1) An addition found in “B, T.”
(2) Narrated by al-Bukhārī (4/353) and Muslim (no. 1515). *Najsh* means bidding up the price of an item without intending to purchase it, whether to benefit the seller, harm the buyer, or merely cause mischief.
(3) An addition found in “B, T.”
(4) In “B, T”: *dhawī*.
(5) As in the Prophet’s saying, peace and blessings be upon him: “Whoever separates a mother from her child, Allah will separate him from his loved ones on the Day of Resurrection.” Narrated by Ahmad (5/413), al-Tirmidhī (no. 1301), who graded it *hasan* (sound), al-Dāraqutnī (p. 256), and al-Hākim (2/55), who authenticated it.
(6) In “B, T”: “The Prophet forbade.”
(7) Narrated by Muslim (no. 1519). *Al-jalab* means goods brought to market, and the “owner” mentioned in the hadith is the seller who brings the goods.