Related for Bava Batra 271:2
איתמר רב יהודה אמר שמואל הלכה כותבין ונותנין וכן אמר רבא אמר רב נחמן הלכה כותבין ונותנין:
[so] here also [the testator's motive may be known] when he declared, 'Also write, and sign, and deliver to him.'<span class="x" onmousemove="('comment',' in which case the testator clearly indicated that the gift was independent of the written deed, the purpose of which was only to strengthen the beneficiary's claims. ');"><sup>4</sup></span> It was stated: Rab Judah said in the name of Samuel: The <i>halachah</i> is that [the deed of a gift] is written and delivered.<span class="x" onmousemove="('comment',' After the testator's death; if it was ascertained (as R. Johanan stated, supra) that the purpose of the deed was to strengthen the beneficiary's claim. ');"><sup>5</sup></span> And Raba in the name of R. Nahman said likewise: The <i>halachah</i> is that [the deed] is written and delivered.<span class="x" onmousemove="('comment',' After the testator's death; if it was ascertained (as R. Johanan stated, supra) that the purpose of the deed was to strengthen the beneficiary's claim. ');"><sup>5</sup></span>