Reference for Bava Batra 94:3

מאי קמ"ל תנינא לקח מסיקריקון וחזר ולקח מבעל הבית מקחו בטל

we accept the proof and confirm their title to the land.<span class="x" onmousemove="('comment',' This is an obvious statement, only made to lead up to what follows. ');">⁵</span> If, however, a robber adduces proof.<span class="x" onmousemove="('comment',' E.g.. witnesses who testify that he bought the land or that the original owner admitted as much, but not that he handed over the money. ');">⁶</span>

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