Study Bava Batra folio 164A with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
And if you say: There is a possibility of forgery with such a document, as the holder of the document can erase the original writing on the paper, then write the text of the document and have witnesses sign on the part that had been erased, then erase the document text once again, substituting for
The Talmud suggests: But let there be a concern that perhaps the holder of the document will initially, after the entire original document, including the signatures, has been erased, but before the second one is written, throw some ink on the place where the witnesses are to sign under the text of
Abaye said in response: Rav holds that witnesses may not sign a document written over an erasure unless the paper was erased in their presence, i.e., unless they saw the paper after its old text had been erased, before the new text was written. They will then see that the place where they are to si
The Talmud raises an objection to the opinion of Rav from a baraita: A document in which its text is on a part of the paper that has never had writing erased and the signatures of its witnesses are on an erasure is valid. The Talmud suggests: But let us be concerned that perhaps the holder of the d
The Talmud answers: Such a document is valid only in a case where the witnesses write this: We, the witnesses, signed on an erasure, but the document text was written on a part of the paper that never had writing erased. If the holder of the document then tries to erase the original text and write