We been studying the laws of a person on his deathbed (shekhiv mayra’-שְׁכִיב מְרַע). This person may transfer his assets to another person by an oral statement without the normally required kinyan, a formal act of acquisition. Today’s daf TB Baba Batra 147 wants to know where this halakha is derived from the Torah. The Gemara provides four different suggestions. All quotes come from Sefaria.org translation.
1. . Rabbi Zeira says that Rav says: From where is it derived that this halakha with regard to the gift of a person on his deathbed is by Torah law? As it is stated in the passage delineating the laws of inheritance: “If a man dies, and he does not have a son, then you shall cause his inheritance to pass to his daughter” (Numbers 27:8). The term “you shall cause…to pass” is superfluous, as the verse could have stated: His inheritance shall go to his daughter. One can therefore derive from this term that you have another case of causing property to pass to another, which is comparable to this case of inheritance, which does not require an act of acquisition. And what is this case? This is the case of the gift of a person on his deathbed.
2. Rav Naḥman says that Rabba bar Avuh says: The halakha with regard to the gift of a person on his deathbed is derived from here: “And if he has no daughter, then you shall give his inheritance to his brothers” (Numbers 27:9). The verse could have stated: His inheritance shall go to his brothers, as inheritance is transferred by itself, without any intervention. One can therefore derive from the term “you shall give” that you have another case of giving that is comparable to this case. And what is this case? This is the case of the gift of a person on his deathbed.
3. Rav Menashya bar Yirmeya says: The halakha with regard to the gift of a person on his deathbed is derived from here: “In those days Hezekiah became deathly ill, and Isaiah ben Amoz the prophet came to him, and said to him: So says the Lord: Instruct your household, for you will die, and you will not live” (II Kings 20:1). This indicates that merely by issuing an instruction, a person on his deathbed can transfer ownership of his property. (Notice that we usually don’t derive halakha from the books of the prophets and say that they are Torah in origin.-gg)
4. Rami bar Yeḥezkel says: The halakha with regard to the gift of a person on his deathbed is derived from here: “And when Ahithophel saw that his counsel was not followed, he saddled his ass, and he arose, and went to his home, to his city; and he instructed his household, and strangled himself” (II Samuel 17:23). This indicates that merely by issuing an instruction, a person on his deathbed can transfer ownership of his property. (Read the chapter why Ahithophel committed suicide. He is only one a possibly four people that Bible records the person committing suicide.-gg)
Tosefot ד"ה מִנַּיִן לְמַתְּנַת שְׁכִיב מְרַע
שֶׁהִיא מִן הַתּוֹרָה
immediately notes that the Gemara
understands that the laws of the shekhiv
mayra’ are really a rabbinic degree. For even Rav Naḥman will say that it is a rabbinic institution on side b of our daf (refer back to the second suggestion
above-gg). “The Gemara resumes the discussion with regard to the gifts
of a person on his deathbed: And Rava says that Rav Naḥman says:
The halakha that the gift of a person on his deathbed does not
require an act of acquisition is merely by rabbinic law, and it is
instituted lest he see that his will is not being carried out and he
lose control of his mind due to his grief, exacerbating his physical state… The Gemara replies: Rav Naḥman maintains that although this
gift is not effective by Torah law, nevertheless, the Sages made
it a halakha with the force of Torah law.” (Sefaria.org translation) All the above
verses are only asmakhta, a support
as opposed to an explicit verse.