Reference for Bava Kamma 194:9

בעא מיניה רבא מרב חסדא המלוה את חבירו על המטבע והוסיפו עליו מהו אמר לו נותן לו מטבע היוצא באותה שעה א"ל ואפילו כי נפיא א"ל אין א"ל אפי' כי תרטיא א"ל אין

But if so how would coins which have currency in Babylon and are kept in Babylon be utilised as redemption money?<span class="x" onmousemove="('comment',' Which would have to be spent for certain commodities to be partaken of in Jerusalem. ');">¹⁴</span> — They may be utilised for the purchase of an animal [in Babylon]. which can then be brought up to Jerusalem. But was it not taught<span class="x" onmousemove="('comment',' Cf. I.M. Sh. I. 2. ');">¹⁵</span>

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