(ii) Talmud, Minochois 107b, Mishna:
“If one vows (to bring a) large (bull),’ and he brought a small (bull), he has not fulfilled (his obligation). (But if he vows to bring) a small (bull),’ and he brought a large (bull), he has fulfilled (his obligation), Rebbi (Yehuda HaNasi) says, ‘He has not fulfilled (his obligation).”
(iii) Maimonides, Laws of Maasei Korbonos 16:9:
“If one vowed to bring a burnt-offering from cattle and designated [an animal as a sacrifice to fulfill] his vow and [later] forgot whether he had designated an ox or a calf, he should bring an ox. Similarly, if he designated a sheep and forgot what he designated, he should bring a ram. If he designated a goat and forgot what he designated, he should bring a grown goat. If he forgot the species from which he designated the burnt-offering, he should bring an ox, a ram, and a grown goat.”
(iv) Torah Verse of Fulfilling What One Says (-Deuteronomy 23:24):
“(i) Observe and do what is emitted from your lips just (ii) as you have pledged to the Lord, your G-d, as a donation, which you have spoken with your mouth.”
(v) Talmud, Minochois 104b, Mishna:
“(If one says), ‘I specified a meal offering of tenths (of an ephah --Eipha: 22 litres; 20 dry quarts) but I do not know how many (tenths) I specified,’ he must bring (a meal offering of) sixty (-tenths of an ephah). Rebbi (Yehuda HaNasi) says, ‘He brings meal offerings of all sizes, (in increments of tenths of an ephah, ranging) from one-tenth (of an ephah) to sixty (-tenths, for a total of sixty meal offerings with a total volume of 1,830 tenths of an ephah, or 183 ephahs).”
(vi) Talmud, Minochois 106b:
“Rav Ashi said (that there is alternative explanation of the disagreement between the Rabbis and Rabbi Yehuda HaNasi), ‘They disagree (with regard to the law of one who is obligated to bring) a small (offering) and (instead brings) a large (offering). The Rabbis hold (that if one is obligated to bring) a small (offering) and brings a large (one instead) he has fulfilled (his obligation), and Rebbi (Yehuda HaNasi) holds (that in such a case) he has not fulfilled (his obligation). (Therefore, in the case of the uncertainty in the mishna, Rabbi Yehuda HaNasi holds that by bringing one meal offering of sixty-tenths of an ephah one does not fulfill his obligation if he vowed to bring a smaller offering.)
“(The Gemara asks:) But didn’t they (already) disagree about this (topic) once? As we learned (in a mishna (107b) that if one said: It is incumbent upon me to bring) a small (bull),’ and he brought a large (bull instead), he has fulfilled (his obligation). Rebbi (Yehuda HaNasi) says, ‘He has not fulfilled (his obligation).
“(The Gemara answers:) It is necessary (for the dispute to be mentioned with regard to both cases), as had (their dispute) been stated (only) with regard to this (case of one who vows to bring a small meal offering and brings a large one instead, there would be room to reason that it is only) in this (case that) the Rabbis say (that he has fulfilled his obligation,) because (both) this (small meal offering) and that (large meal offering are identical with regard to the portion of the offering that is sacrificed on the altar; in both cases) it is a handful. But there, (in the case of one who vows to bring a small bull but brings a large one,) since the sacrificial portions are greater, (i.e., larger, there is room to) say (that the Rabbis) concede to Rebbi (Yehuda HaNasi that he has not fulfilled his obligation).
“And had (their dispute) been stated (only) in that (case of one who vows to bring a small bull and brings a big one, there would be room to reason that only in that case) Rebbi (Yehuda HaNasi) says (that the person has not fulfilled his obligation, because the sacrificial portions are larger). But in this (case of bringing a large meal offering instead of a small one, there is room to say that Rabbi Yehuda HaNasi) concedes to (the opinion of) the Rabbis. (Therefore,) it is necessary (for the mishna to teach both cases.)”
