Reference for Shevuot 86:2

אמר שמואל ארישא וכן אמר רבי חייא בר רב ארישא וכן א"ר יוחנן ארישא

You may infer this [in any case], for the oath devolves upon the lender!<span class="x" onmousemove="('comment',' For he is the one who admits a portion of the claim.');">³</span> - Said Samuel: It refers to the first clause: and so said R'Hiyya B'Rab: It refers to the first clause; and so said R'Johanan: It refers to the first clause.

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