Responsa for Bava Batra 294:6

למימרא דסבר ר"נ מילתא דאיתא בבריא איתא בשכיב מרע דליתא בבריא ליתא בשכיב מרע והא אמר רבא אמר רב נחמן

that a man in good health may confer,<span class="x" onmousemove="('comment',' Lit., 'there is'. ');">²⁰</span> may also be conferred by<span class="x" onmousemove="('comment',' Lit.. 'there is not', i.e., that the only difference between the rights of a healthy, and those of a dying man consists in the privilege of the latter to transfer possession by a mere verbal instruction, while in the case of the former, actual or symbolic acquisition must take place. ');">²¹</span> a dying man, [while those] which a man in good health cannot confer,<span class="x" onmousemove="('comment',' Lit.. 'there is not', i.e., that the only difference between the rights of a healthy, and those of a dying man consists in the privilege of the latter to transfer possession by a mere verbal instruction, while in the case of the former, actual or symbolic acquisition must take place. ');">²¹</span> can neither be conferred by a dying man?<span class="x" onmousemove="('comment',' Lit.. 'there is not', i.e., that the only difference between the rights of a healthy, and those of a dying man consists in the privilege of the latter to transfer possession by a mere verbal instruction, while in the case of the former, actual or symbolic acquisition must take place. ');">²¹</span> Surely Raba said in the name of R Nahman:

Teshuvot Maharam