Menachos Daf 106 מנחוס דַף 106

A Baraisa elaborates on the machlokes taught in the Mishnah on Daf 104b: if one specified to bring a particular number of עשרונים but cannot recall the amount, and established that it should be brought in a single כלי, the Chochomim say he brings a single minchah consisting of sixty עשרונים, thus covering every possibility. Rebbe says he must bring all possible menachos from one עשרון to sixty, totaling one thousand eight hundred and thirty עשרונים. Rav Chisda offers the first of four explanations of their machlokes: במותר להכניס חולין לעזרה קא מיפלגי – they are arguing if it is permitted to bring chullin into the עזרה. [He assumes it is forbidden to mix a mandatory minchah with a נדבה.] Rebbe prohibits bringing chullin into the עזרה, so bringing a single minchah is not an option. Rather, he must bring sixty separate menachos ranging from one עשרון to sixty, stipulating that the correct amount should be for his נדר, and the others should be נדבות. The Rabbonon hold he can bring sixty עשרונים in one כלי and stipulate that whatever amount he vowed is his minchah, and the surplus flour should remain chullin.

Rabbah says all Tannaim prohibit bringing chullin into the עזרה. Rather, במותר לערב חובה בנדבה קא מיפלגי – they are arguing whether it is permitted to mix a mandatory [minchah] with a voluntary one (i.e., a prior נדר with a נדבה). The Rabbonon permit it, so he may bring a single minchah of sixty עשרונים and stipulate that any amount beyond his original נדר should be for a נדבה. Rebbe prohibits mixing the נדר with a נדבה, so he must bring sixty separate menachos. In the Rabbonon’s method, he must perform kemitzah twice, once for the נדר and once for the נדבה. To ensure each kometz does not include any flour from the wrong minchah, he stipulates that whatever comes into his hand for the first kometz should be sanctified for the נדר, and all the flour of the second kometz should be for the נדבה. The Gemara then objects that burning both קמצים should be problematic, since all sixty עשרונות may be needed for the נדר, and the other kometz being burned is actually שיריים!? The Gemara answers: דמסיק להו לשום עצים – that he burns [this second kometz] for the sake of firewood, because Rebbe Eliezer darshens that although it is forbidden to offer שירים on the מזבח, that is only for "ריח ניחוח" (i.e., as a הקרבה), but not as firewood.

The next Mishnah states that one who says הרי עלי עצים – “It is hereby upon me to bring wood for the מזבח,” לא יפחות משני גזירין – he may not bring less than two blocks of wood. If he pledged to bring לבונה, he must bring at least a kometz. The Mishnah details how much one must bring if he pledges to give gold, silver, or copper. If he pledged a specific amount of a precious metal but forgot how much, he must bring enough of it until he can say לא לכך נתכוונתי – “I did not intend this much.” In a Baraisa, the Tanna Kamma darshens שמתנדבין עצים – that we may donate wood as an offering, which requires שני גזירין (another passuk also mentions "קרבן עצים" – an offering of wood). Rebbe says that a wood offering is a korban [minchah], וטעונין מלח וטעונין הגשה – and they require salting and require bringing close to the מזבח, like every minchah. Rava adds that according to Rebbe, the wood of such an offering require kemitzah. Rav Pappa adds that according to Rebbe, עצים צריכין עצים – the wood of this offering requires other wood to burn them, like every minchah.