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 == skins of tahash already on hand! (so ""the tahash"" never arrived!) == 

 The Rebbe Schneerson and the Torah both attest that the people already had skins-tachashim on hand to contribute to the Mishkan.  They didn't get them from a never-before-seen large animal that showed up just at the moment when Mosheh needed the skins prescribed by Hashem.  It's obvious:  The Talmud contradicts the Torah.  Evidence?— 

 Can anyone tell us:  On what basis does R. Nehemiah say that hide/skin tachashim curtains of 30 cubits were ""seamless""—and therefore conclude that a necessarily miraculous creation of a previously unknown ""תחש"" was used?  No such animal is attested anywhere.  The Torah never states such a remarkable phenomenon, and it always stipulates the marvelous works that were done by Hashem for the people in the wilderness as signs of loving care.  (For example, details of the sending of seraph serpents, the flowering of Aaron's rod, the declaration that quails were specially sent and the consequences that followed.)  The special creation of such an animal exclusively for the adornment of the Mishkan is never mentioned among the marvelous works of Hashem listed in the Torah.  (Therefore    "