My focus in this column will be about that famous Amora, Rabbi Mana, who was the brother of second-generation Rav Huna, and how this relates to our sugya in Bava Batra 152b. Rabbi Mana says מַתְּנַת שְׁכִיב מְרַע שֶׁכָּתוּב בָּהּ קִנְיָן, אִם עָמַד אֵינוֹ חוֹזֵר. This indicates that when a dying person formalizes their gift with a kinyan, it becomes irrevocable, even if they later recover.