For the source text click/tap here: Bava Batra 47
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Steinsaltz "Generally speaking, in order for a kinyan – a transfer of ownership – to take place, Jewish law requires gemirut da’at – knowledge and agreement on the part of both the buyer and the seller. It is, therefore, somewhat surprising to hear Rav Huna’s teaching – talyuhu ve-zabein, zevinei zevini – if someone is “hung,” i.e. if he is forced to sell something, the sale takes effect.
In answer to the Gemara’s query of why this would be true, we are told that everyone who sells really is doing it against his will, yet we accept that he agrees to the sale. Here, too, we view him as having accepted the sale.
We explore involuntary alienation in law and talmud.