Talmud for Sheviit 10:9

Rebbi Jacob bar Idi, Rebbi Abbahu in the name of Rebbi Joḥanan: A ring does not have the status of a pledge⁴⁴Since it has to be returned as is, it is only a reminder without legal consequences. Cf. Ševi‘t 10:9, Note 131; Babli 48b.. Nobody dealing in words onlymay one deliver to “Him Who exacted retribution”⁴⁵Sevi‘it 10:9, Notes 129–130; Babli 49a, Tosephta 3:14. As long as there was no action of acquisition, the person who goes back on his word can be considered untrustworthy but is not subject to judicial censure.. Rebbi Jacob bar Zavdi, Rebbi Abbahu in the name of Rebbi Joḥanan: If one promised a gift to another and wanted to renege on it, he may renege.⁴⁶Sevi‘it 10:9, Notes 133–142; Ma‘aśer Šeni 4:7 Note 129 Babli 49a. [Rebbi Jacob bar Zavdi asked before Rebbi Abbahu: Is that “true no, true yes⁴⁷Lev. 19:36.”?]⁴⁸Text added from E. Since the answer is given in L, the question must have been in the original text. For the duty to be honest in monetary matters as a biblical command, cf. Ševi‘it 10:9, Note 134; Giṭṭin 6:1, Note 39. He said, at the moment when he said it, he had to speak with full deliberation⁴⁹The obligation to be honest does not imply a prohibition to change one’s mind. In the Giṭṭin text, it is R. Jacob bar Zavdi who gives the answer to R. Yose [Babli 49a, Bekhorot 13b; Sifra Bekhorot Pereq 8(7)].. After that, if he changes his mind, he cannot change it, that is, if [the recipient] is poor⁵⁰Giving alms is not a gift to the poor but a gift to God and as such is final upon being promised (Mishnah Qiddušin 1:6.
Kaftor waPeraḥ Chapter 44 reads: “If somebody promised to give a gift and wants to change his mind, he may change his mind. But if he said, I am speaking with full deliberation, he cannot change his mind. That is, for a rich recipient. But for a poor recipient it becomes a vow.” This seems to be more of a paraphrase than an exact quote.. But for a rich person, is that a vow? Rav commanded his servant: If I tell you to give a gift to a person, if he is poor, give it to him immediately. But if he is rich, take counsel with me a second time⁵¹This contradicts the statement in Ševi‘t 10:9 that Rav never changed his mind once he had promised a gift..

HALAKHAH: “I am putting an oath on you,” etc. ⁹⁶Ševi`it 10:9 Notes 133–134; Giṭtin 6:1 Note 39, Bava meṣi`a 4:2 Note 49; Babli Bava meṣi`a49a, Bekhorot 13b; Sifra Qedošim Pereq 8(7). Rebbi Yose, Rebbi Jacob bar Zavdi, Rebbi Abbahu in the name of Rebbi Joḥanan: If somebody wanted to change his mind after he had promised a gift to another person, he may change his mind. Rebbi Jacob bar Zavdi asked before Rebbi Abbahu: Did He not say “a true yes”⁹⁷Lev. 19:36. The pun identifies the measure הִין with the Aramaic equivalent הֵן of the Hebrew כֵּן “yes”. It shows that -ֵ was pronounced like -ִי (Itacistic η = ῖ). The verse is read as exhortation to be honest in business dealings.? At the moment when he said it, it was a true yes.