Study Bava Metzia folio 74A with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
By contrast, here, the matter is not in his power to determine whether or not to buy the wine, as perhaps the owner will not sell it to him.
§ Rava said: In the case of these 3 people who gave money to one individual in order for him to purchase an item for them and he purchased the item for only one of them, he has actually purchased it for all of them. All 3 share ownership of that which was purchased, and the one for whom the item
Rav Pappi said in the name of Rava: In this case of labeling an item with a marker [situmta], which was commonly used to indicate that specific merchandise had been sold, even though the buyer had not yet paid and the item was still located in the seller’s warehouse, the labeling effects acquisiti
But the Rabbis said: It effects acquisition only concerning a case where one of the parties withdraws from the transaction and is required to accept upon himself the curse of: He Who exacted payment from the people of the Generation of the Flood, and from the people of the Generation of the Dispers
The Talmud concludes: And the halakha is that a marker effects the acquisition of the item only in that one who withdraws from the transaction is required to accept upon himself the curse: He Who exacted payment. But in a place where the custom is that it actually effects the acquisition of the ite