Sayyiduna Abu Hurayrah (may Allah be pleased with him) says that the Messenger of Allah (peace and blessings be upon him) forbade "sales involving deception, and sales made by throwing a pebble."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10417
Ubaydullah bin Umar (may Allah have mercy on him) also narrates similarly, that he (peace and blessings be upon him) "forbade sales made by throwing a pebble."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10418
Amr bin Shu'ayb narrates from his father, and he from his grandfather (may Allah be pleased with him), that the Messenger of Allah (peace and blessings be upon him) said: "A loan combined with a sale is not lawful, two conditions in one sale are not valid, taking profit on something for which one has not borne liability is not valid, and selling what is not with you is not permissible."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10419
Isma'il bin Ulayyah also narrated it from Ayyub, who said: Amr bin Shu'ayb narrated to me; he said: My father narrated to me from his father, until he mentioned Abdullah bin Amr (may Allah be pleased with them both).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10420
Sayyiduna Hakim bin Hizam (may Allah be pleased with him) says that the Prophet (peace and blessings be upon him) forbade me "to sell what I do not have," or he said: "to sell goods that are not with me."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10421
Sayyiduna Hakim bin Hizam (may Allah be pleased with him) says: I said: O Messenger of Allah, a man asks me for goods, that is, a sale, and the goods are not with me; may I sell them to him? He (peace and blessings be upon him) said: "Do not sell what is not with you."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10422