אִם יִרְצֶה הַשֵּׁם
A poor talmid asked for a kindly chazer of a hard daf.
The page is Pesachim 43b. The voice in the room is R’ Avigdor Miller. The last third is where most people get lost because the Gemara changes subject while keeping the same words.
Do not try to own every tzad. Take home one default, two exceptions, and one mix-up people make at the end.
The daf in one breath
First the Gemara is asking who eats. Then it is asking what is eaten. Then it is asking whether an innocent crumb may help a forbidden crumb reach a punishable size.
Those are three questions. If you let them wear one hat, the end of the sugya feels like fog.
I. Who eats — women, chametz, matzah
Kashya → terutz
Kashya. The verse already yokes chametz to matzah. Women are out of a time-bound aseh. Why should they be in the lav?
Terutz. כׇּל kol (all) is written on the eater. Without it one would say: no kum ekhol matzah, no bal tokhal chametz.
Sevara. The juxtaposition almost excludes them. The extra word pulls them back in.
Kashya. וּמַאי חָזֵית — what did you see to spend kol on women and throw away עֵירוּבוֹ eiruvo (its mixture)? Spend it on karet for the mix.
Terutz. מִסְתַּבְּרָא, קָאֵי בְּאוֹכְלִין מְרַבֵּה אוֹכְלִין — it stands among eaters, so it includes eaters.
Sevara. Same phrase-shape prefers same min: persons before objects.
Kashya. By chelev the same ki kol stands among eaters and still includes ne’ekhalin (foods). So why not here?
Terutz. There, no leftover eater needs including. Here an eater is available, so the verse will not skip the eater to chase the eaten.
The רַבָּנַן Rabbanan (Sages) do not darshen kol. They work כִּי כׇּל ki kol (for anyone). R. Eliezer looks as if he could split the pair — kol for women, ki kol for the mix — but a beraisa on שְׂאֹר בַּל תַּקְטִירוּ se’or bal taktiru (do not burn leaven on the altar) shows that he darshens both. The Gemara leaves that as קַשְׁיָא.
That kashya is not your failure. It is the amud’s own unfinished sentence.
The only hermeneutic you need from this half
The Torah wrote לֹא תֹאכַל עָלָיו חָמֵץ … שִׁבְעַת יָמִים תֹּאכַל עָלָיו מַצּוֹת. That is a heqqesh: whoever is in the lav of chametz is in the aseh of matzah. The hava amina had used the same juxtaposition the other way, to almost exempt women from the lav. One yoke, two directions. That is enough.
II. The default you must not lose
I ate half a kezayis of issur and half a kezayis of kosher. Did I do a punishable eating?
Default: no.
אֵין הֶיתֵּר מִצְטָרֵף לְאִסּוּר ein heter mitztaref l’issur (the permitted does not complete the forbidden shiur).
Punishment needs a kezayis of the issur itself. The kosher half is not a helper. Half neveilah plus half steak is mostly a steak-eating with a bit of issur riding along.
If you remember only one line from the hard end, remember that.
III. Two exceptions — and why the second one is slippery
1. Nazir
A nazir soaks bread in wine and eats the soaked bread, even without a full shiur of wine. Why chayav?
The Torah wrote מִשְׁרַת mishras (soaking). That one word makes the bread-and-wine one act of drinking.
An exception is never from sevara alone. It needs a verse.
2. Se’or on the mizbeach
זְעֵירִי Ze’eiri adds שְׂאוֹר se’or (leaven burned on the mizbeach) to that short list.
His beraisa has an extra ki kol that teaches eiruvo (its mixture). He hears that as: permitted dough may finish the shiur of the burning.
Se’or is not a new hobby. It is the question: does the altar-act work like the nazir’s soaking?
IV. The place most talmidim get lost — Abaye and Rava
Why did the beraisa pick se’or and not ordinary Pesach-chametz?
To choose between אַבַּיֵי Abaye and רָבָא Rava.
- Abaye: there is הַקְטָרָה haktarah (altar-burning) in less than a kezayis. A מַשֶּׁהוּ mashehu (speck) of se’or on the fire is already an aveirah. The kosher half is unemployed.
- Rava: a burning only starts at a kezayis. Half se’or plus half matzah can add up.
If you are ke-Abaye, Ze’eiri’s “joining” has no seat. If you are ke-Rava, the joining has a job.
That is the whole hinge. The rest is who owns which extra word.
V. Tosafos against Rashi — a budget fight, not a taste fight
The Gemara asks כְּמַאן k’man (like whom?) and answers כְּרַבִּי אֱלִיעֶזֶר דְּדָרֵישׁ כׇּל ke-Rabbi Eliezer de-darish kol (like R. Eliezer, who expounds kol).
The Ri’s map
The beraisa is a three-rung ladder: kulo / miktzato / eiruvo.
- מִקְצָתוֹ miktzato (part of it) from kol.
- עֵירוּבוֹ eiruvo (its mixture) from ki kol.
Once eiruvo is a separate limud, that limud is the join of permitted bulk to forbidden bulk. That only lives like Rava: miktzato is already a completed kezayis, so eiruvo is free to buy heter mitztaref.
For Abaye, miktzato is already a half-zayis / speck alone. His eiruvo is only a mass mixed through — כְּשֶׁמִּתְעָרֵב לְגַמְרֵי keshe-mit’arev legamrei (when wholly mixed) — and the issur is not batel in the heter. That is ta’arovet, not tziruf shiur.
Why only R. Eliezer? The Rabbanan have one extra coin (ki kol). They spend it on miktzato. Only the Tanna who darshens both layers can assign kol to part-of-it and ki kol to the mix-that-joins.
Rashi’s map
Rashi reads Ze’eiri’s miktzato as half-zayis se’or and half-zayis matzah, each one נִיכָּר nikar (recognizable), not mixed.
Tosafos leaves four stones on that map and does not pick them up:
- Then Ze’eiri is neither Abaye nor Rava.
- The Rabbanan also have ki kol; on Rashi that word itself could be tziruf. So why k’man ke-R”E?
- If the se’or-verse is already spent on tziruf, from where do we know ta’arovet of chametz?
- Unmixed half-plus-half must be miktzato, because mixed would already be eiruv — but later, by chatas on 45a, heter mitztaref waits עַד שֶׁיִּבָּלַע בִּבְשָׂרָהּ ad she-yibala bivsarah (until it is absorbed in its flesh).
The sevara is consistency of budget. Each rung of a beraisa must buy a new increment. Rashi looks as if one word is paying twice, and as if tziruf does not need a blend, while 45a wants beli’ah.
You do not have to pasken this tonight. You only have to hear the two maps.
VI. Kitchen language for the hard idea
Think of a shiur as a minimum act, not as chemistry.
If the Torah said “do not eat neveilah,” it meant “do not perform an eating of neveilah.” The steak does not donate its weight to the issur.
Sometimes the Torah does say the act is one. Nazir: soaking bread in wine is the drinking. Altar, for Ze’eiri / Rava: putting a combined kezayis on the fire is the burning, even if only half the bulk is se’or.
Now the mix-up.
- טַעַם כְּעִיקָר ta’am k’ikar (taste counts as the thing itself) is a different kitchen. The stew tastes of wine, so the stew itself is treated as wine.
- Heter mitztaref does not claim the matzah became se’or. It only claims the gesture — one swallow, one burning — was big enough.
Never let taste and joining a shiur wear the same hat.
VII. Miller’s soup — why the last minute feels like another masekhta
A thick soup. Pieces of תְּרוּמָה terumah (priestly produce) onion swimming in חוּלִין chulin (ordinary) broth. A tamei touches one onion.
Two questions got glued together:
- Is the whole pot posel?
- Is that island posel?
The pot follows the majority. It is chulin. The untouched onions elsewhere in the bowl stay with the pot.
The touched island is still chashuv, because a scooped spoon of onion-plus-soup can already be an אֲכִילָה achilah (eating) of terumah inside a כְּדֵי אֲכִילַת פְּרָס kedei achilat p’ras (the span of eating a half-loaf).
That is not heter mitztaref. Nobody is finishing a shiur with chulin. Majority runs the pot. A real eatable kezayis runs the touched spoonful.
R’ Miller himself left בִּטּוּל bitul (nullification) of visible floating pieces as a difficulty. You are allowed to still be confused there. The rishonim are too.
A small table for the end
| If you are asking | Simple din | Who says it | What not to confuse it with |
|---|---|---|---|
| Half issur + half kosher, eaten | Usually not malkus | R. Yochanan / R. Abbahu | “It tasted like issur” |
| Nazir, bread soaked in wine | Yes, they join | mishras | Ordinary wine-taste in a stew |
| Half se’or + half matzah on the fire | Ze’eiri: they join | only if you hold like Rava and R. Eliezer | Abaye’s speck, which needs no partner |
| Whole pot of chulin soup | Not all posel | majority | Whether one onion is still terumah |
| The onion he actually touched | That island is posel | it could be eaten as a kezayis in a p’ras | Bitul of pieces you can still see |
Terms of art, said once so they stop bullying you
- כׇּל kol (all / any) — extra inclusive word.
- כִּי כׇּל ki kol (for anyone / for any) — stacked inclusive. The Rabbanan work only this layer.
- עֵירוּב / עֵירוּבוֹ eiruv / eiruvo (mixture / its mix).
- מִצְוַת עֲשֵׂה שֶׁהַזְּמַן גְּרָמָא mitzvat aseh she-ha-zeman geramah (time-caused positive command) — the ordinary exemption of women; the hava amina that almost took chametz with it.
- אוֹכְלִין / נֶאֱכָלִין ochlin / ne’ekhalin (eaters / things eaten).
- חֵלֶב chelev (forbidden fat) — control-case: same syntax, different empty slot.
- שְׂאוֹר se’or (sourdough / leaven).
- בַּל תַּקְטִירוּ / הַקְטָרָה bal taktiru / haktarah (do not burn / the act of burning on the mizbeach).
- מִקְצָתוֹ miktzato (part of it).
- הֶיתֵּר מִצְטָרֵף לְאִסּוּר heter mitztaref l’issur (the permitted joins the forbidden to complete a shiur).
- מִשְׁרַת mishras (soaking).
- כְּזַיִת / חֲצִי שִׁעוּר / מַשֶּׁהוּ kezayis / chatzi shiur / mashehu (olive-bulk / half-measure / any speck).
- טַעַם כְּעִיקָר ta’am k’ikar (taste is as the substance).
- נִיכָּר nikar (recognizable) — Rashi’s unmixed halves.
- בָּטֵל batel (nullified).
- כְּדֵי אֲכִילַת פְּרָס kedei achilat p’ras (span of eating a half-loaf).
- עַד שֶׁיִּבָּלַע בִּבְשָׂרָהּ ad she-yibala bivsarah (until absorbed in its flesh) — chatas, 45a.
What the tired talmid should walk out with
- Women are in chametz, and therefore in matzah. That half of the daf is a word-assignment fight, not a new hashkafah.
- Ordinary issurim: kosher food does not complete the kezayis.
- Nazir is the clear exception (mishras). Se’or is a maybe, and only on Rava’s definition of burning.
- Never let taste and joining a shiur wear the same hat.
- At the soup: majority runs the pot; a real eatable kezayis runs the touched spoonful. Visible pieces and bitul — you are allowed to still be confused.
The kashya the Gemara left on R. Eliezer is not a stain on you. It is an invitation to come back.
Open kashya for re-entry
If the onion is still nikar — you can see it swimming — Rashi’s unmixed halves and Miller’s floating terumah look like cousins.
Tosafos, from the chatas of 45a, wants absorption: ad she-yibala bivsarah.
So: is “I can still see the issur” the friend of tziruf (Rashi), or the enemy of tziruf (Tosafos)?
Hold that one question. The rest of the daf will wait.
Chazer from Pesachim 43b, walking R’ Avigdor Miller’s line and Tosafos ד״ה כמאן כר״א דדריש כל. Written for a talmid who wants the sevara more than the victory.