Tawus said that he heard Sayyiduna Ibn Abbas (may Allah be pleased with them both) (say) that the Messenger of Allah (peace and blessings be upon him) said regarding food: "It should not be sold before possession is taken of it." Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: I think that all things are like it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10680
Safwan bin Ya'la narrates from his father (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) appointed Attab bin Asid (may Allah be pleased with him) as governor of Makkah. He (peace and blessings be upon him) said: "I have made you the leader over the people of Allah, (enjoining you) with the fear of Allah." None of them should eat from the profit of something for whose loss he has not taken responsibility; and forbid them "from (combining) a loan and a sale, from two conditions in one sale, and that any one of them should sell what he does not have."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10681
Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said that the Messenger of Allah (peace and blessings be upon him) said to Attab bin Asid (may Allah be pleased with him): "I am sending you to the people of Allah and the people of Makkah. Forbid them from selling a thing before they take possession of it, or from profiting from something for whose loss they have not accepted responsibility, and (forbid them) concerning a loan and a sale, two conditions in one sale, and a sale and a loan."
Yahya bin Salih al-Ayli alone narrated it, and it is munkar (denounced) with this chain.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10682
Amr bin Shu'ayb narrates from his father, from his grandfather (Sayyiduna Abdullah bin Amr, may Allah be pleased with them both), that the Prophet (peace and blessings be upon him) sent Sayyiduna Attab bin Asid (may Allah be pleased with him) and forbade him "two conditions in one sale, a loan and a sale, selling what you do not have, and profiting from something for whose loss responsibility has not been taken."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10683
Hakim bin Hizam (may Allah be pleased with him) said: I said: O Messenger of Allah (peace and blessings be upon him)! I am a man who buys goods; what of that is lawful and what is unlawful? He (peace and blessings be upon him) said: "O son of my brother! When you buy goods, do not sell them before taking possession of them."
Yahya bin Abi Kathir did not hear it from Yusuf; he only heard it from Ya'la bin Hakim, from Yusuf.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10684
Sayyiduna Hakim bin Hizam (may Allah be pleased with him) said: I said: O Messenger of Allah (peace and blessings be upon him)! I buy these trade goods; what of them is lawful for me and what is unlawful? He (peace and blessings be upon him) said: "O son of my brother! Do not sell anything at all before taking possession of it."
(b) Aban said in the hadith: When you buy goods, "do not sell them before taking possession of them."
This chain is hasan (good) and connected.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10685