תלמוד על בבא בתרא 9:6

“ ‘Give this mina to X,’ then he died. If the heirs want to hinder [the delivery] they are powerless. It is unnecessary to say that it is so if he said, acquire for him, if he said, accept by my orders.²⁰⁰In a slightly different wording, this is Tosephta 1:9.” Rebbi Abba barMamal said, this baraita refers to a sick person. If he is sick, does he not have to say: acquire for him, accept for him? Rebbi Mana said, I confirmed this by what Rebbi Abba bar Rav Huna said in the name of Rav: They treated verbal instructions by a sick person as if they were written and delivered²⁰¹In the Babli (13a, 15a, Baba Batra 121a, 175a) this is a statement of Rav Naḥman, universally accepted. Cf. Ketubot 11:1, Note 22.. But only if he died from that sickness, not if he recovered, he did not have to say: acquire for him, accept for him.