Mishnayos Kiddushin Perek 1 Mishnah 6

כל הנעשה דמים באחר – The Gemara explains (Kiddushin 28a-b): whatever is assessed as an equivalent (i.e., an exchange is meant and not a sale for cash), [for] anything – if one comes to give him money for another thing, must assess its value, that is, all the movables except for coins.

כיון שזכה זה – that is to say, once the first [person] pulls, the second is obligated for an exchange (I.e., a form of possession by handing to the purchaser an object as a symbolical substitute), in every place that they are, and if they died or lost it, and even though he had not pulled, since through the pulling by the seller of the scarf or the object, the object is acquired by the purchaser in whatever place he is in. And even though the object that they are purchasing is not worth at least a penny, and as long as it is not a coin or produce, with these – we do not acquire through them. And all things are acquired by exchange – movables, slaves and property, except for coinage which is not acquired through exchange, since the minds of people are [focused] on the form of the coin and not on its substance. For its form is likely to become nullified. Therefore, if a person purchased a coin without weight or without number, and said: “these are in exchange for a certain field,” or a certain slave, or a certain object, since this one pulled it, the other is liable in its exchange, for he has revealed his thought that he is not strict about its form since he didn’t weigh it or count it. For there is no way that the acquisition of the coin will take effect where it is lacking in his eyes, other than to acquire it along with land.

רשות הגבוה בכסף – the treasurer who gave monies for the animal for the needs of the Temple treasury, even if it is at the end of the world, he has acquired it. But regarding a commoner who cannot acquire other than through claim based upon undisturbed possession, that is until he pulls it. And if the commoner gave money for the object, as long as he didn’t pull the object, he did not acquire it, and the seller can return the monies if he retracts from the sale of the object, and he accepts upon himself [the curse] of “he who punished” ( see Mishnah Bava Metzia, Chapter 4, Mishnah 2) (for not standing by his word). But if the purchaser pulled the object, even though he had not given the monies that he had stipulated, neither party of them can retract. And if he did not give the monies and did not pull the object, but rather, were pardoned on the sale in the presence of witnesses and he (i.e., the purchaser) was reconciled that her would purchase it for such-and-such an amount, and his fellow was reconciled to sell it for such-and-such an amount, even if he said: “you are my witnesses,” there is nothing in those words, and even [the curse] “he who punished” (for not standing by his word) is not here.

אמירתו לגבוה כמסירתו להדיוט – He who says: “This bull is for a burnt-offering” or “this house is devoted to the Temple treasury, even if it is at the end of the world, he has acquired it. And the common person does not acquire until he pulls the animal’ and takes hold of the house.