Daf Yomi

Chullin 79

StandardJuly 18, 2026

Hook

Hey there, my friend! Pull up a log, grab a mug of hot cocoa, and let the warmth of this virtual campfire settle into your bones. Can you hear the crickets? Can you smell the pine needles and the faint, sweet scent of woodsmoke?

There is a magical moment at the end of every camp summer. The final campfire is burning down to a bed of glowing red embers. The guitars are strumming softly, and we are all sitting shoulder-to-shoulder, singing that classic, soaring niggun that we’ve sung a thousand times. Let’s hum it together right now to get into the space:

“Oi-yoi-yoi, yai-la-lai, dai-dai-dai... yai-la-lai, dai-dai-dai...”

Go ahead, hum it out loud. Let your shoulders drop.

During those late-night cabin discussions, when the flashlights were dimming and the counselor was trying to get us to sleep, we’d inevitably slide into the deepest, most beautiful questions of identity. We would look up at the wooden rafters and ask: Who am I, really? Am I just a copy of my parents? Am I destined to have my mother’s quick temper or my father’s quiet anxiety? Or am I something entirely new—a wild, beautiful hybrid, forging my own path in the wilderness?

Today, we are taking those late-night cabin questions and bringing them into the Beit Midrash of adult life. We are diving deep into the swirling, fascinating waters of Chullin 79a, a page of Talmud that reads like an ancient biological safari. We will meet horses, donkeys, mules, and a mysterious, mythological creature called the koy. But beneath the surface of this bizarre animal kingdom lies a profound, life-shifting blueprint for how we understand our families, our heritages, and the beautiful, messy, "in-between" spaces of our lives.

So, take a deep breath. Let’s bring this campfire Torah home.


Context

To understand why the Sages of the Talmud are suddenly acting like zoologists, we need to set the scene. Here are three quick guideposts to help us navigate the terrain:

  • The Law of Empathy (Oto V'et Bno): At the heart of our text is a commandment from Leviticus 22:28: "And whether it be a bull or a sheep, you shall not slaughter it and its offspring both in one day." This mitzvah, known as Oto V'et Bno (literally "it and its child"), is a foundational lesson in cosmic empathy. It tells us that even when we must consume animal life, we must never destroy the visible bond between generations in a single, unfeeling moment. We must respect the thread of continuity.
  • The Boundary Waters of Identity (Our Outdoors Metaphor): Imagine paddling a canoe down a rushing river. Suddenly, you hit an estuary—the exact place where the sweet, clear fresh water of the river collides and mixes with the salty, surging tide of the ocean. In this brackish water, the rules of both the river and the ocean blur. You are in a borderland. In our Talmudic text, hybrid animals like the mule (born of a horse and a donkey) or the koy (a creature born of a goat and a doe) are the spiritual estuaries of the animal world. They don't fit into neat boxes. The Sages are trying to figure out: When you are born of two entirely different worlds, which world claims your soul?
  • The Debate of Paternity (Zera Ha'av): The legal engine of our text is a massive debate over whether we "worry about paternity" (chosheshin l'zera ha'av). When a hybrid creature is born, is its spiritual-legal identity determined solely by the mother who carried it and gave it birth, or does the father’s genetic and spiritual imprint demand our recognition as well? This isn't just ancient biology; it's a deep dive into how we inherit our traits, our obligations, and our songs.

Text Snapshot

Let’s look directly at the glowing embers of the text itself. Here is the heart of the discussion on Chullin 79a:

And according to the opinion of Ḥananya, the reason for his ruling is that it is written “it” [oto], which indicates a male, and it is written “its offspring” [bno], teaching that the prohibition applies to that parent whose offspring clings to it, which indicates a female. Therefore, this prohibition applies to both males and females.

... Abaye says: If its voice is deep, it is the offspring of a female donkey; if its voice is shrill, it is the offspring of a female horse.

And Rav Pappa says: If its ears are large and its tail is small, it is the offspring of a female donkey; if its ears are small and its tail is large, it is the offspring of a female horse.


Close Reading

Now, let’s unpack this text with some "grown-up legs." We are going to look at two massive insights that translate directly from the dusty pathways of the Talmud right onto our living room rugs and dining room tables.

Insight 1: "The Voice of the Horse, the Tail of the Donkey" – Unpacking the Dual Inheritance of Identity

Let’s look at the first debate in our text. We have two main players: Rabbi Yehuda and the Sages (specifically Hananya).

Rabbi Yehuda holds a fascinating view when it comes to hybrid animals like mules. He says in Mishnah Kilayim 8:4 that if you have two mules born of female horses, even if one was fathered by a donkey and the other by a horse, they are considered the same species and are permitted to mate. Why? Because Rabbi Yehuda believes ein chosheshin l'zera ha'av—we do not worry about paternity when determining the species of an animal. To Rabbi Yehuda, the mother is the anchor. She is the one who carries, births, and nurtures. The father's contribution, while biologically necessary, does not define the fundamental identity of the offspring.

But Hananya and the Rabbis strongly disagree! They argue that chosheshin l'zera ha'av—we absolutely must take the father into account.

To prove this, Hananya looks at the very words of the Torah regarding the prohibition of slaughtering a parent and its child on the same day. Let's look at how the great commentator the Rosh (Rosh on Chullin 5:1:2) breaks down this debate:

"The Sages taught: Oto V'et Bno applies to females and does not apply to males. Hananya says: It applies to both males and females... What is the Sages' reason? The Torah says 'Oto' (it/him) - one, and not two. And since the verse distinguishes, I have won my case: just as with the mother bird (em al habanim) the law only applies to females, so too here. But if you wish to say, 'Oto' is written, which implies males and not females! Therefore, the verse says 'Bno' (his/its offspring)—the one whose offspring clings to it, which excludes the male, who does not have offspring clinging to him. And Hananya? 'Oto' is written, which implies a male, and 'Bno' is written, implying the one whose offspring clings to it, which is a female. Therefore, it applies to both."

Look at this gorgeous linguistic dance! The Rashba (Rashba on Chullin 79a:1) and Tosafot (Tosafot on Chullin 79a:1:1) push this even further. They ask: If Hananya wants to include both parents, why didn't the Torah just write the word "Ben" (child) and remain silent about "Oto" and "Bno"?

They answer beautifully: The word "Bno" specifically carries the connotation of clinging (karuch). It’s about relationship. It’s about the child who walks behind its parent, mimicking their steps, seeking their warmth. Typically, in nature, the offspring clings to the mother. But by pairing the word "Bno" (clinging/mother) with the masculine pronoun "Oto" (him/father), the Torah is teaching us a radical spiritual lesson: paternity is not just a biological fact; it is a relational reality. The father, too, can be the parent to whom the child clings. The father’s imprint is deeply woven into the child's soul.

This is echoed clearly by Rabbeinu Gershom (Rabbeinu Gershom on Chullin 79a:1), who writes simply:

"Therefore, it applies both to the father and his child, and the mother and her child."

But how do we know who the mother is if we just encounter a mule in the wild? This is where the Talmud gets wonderfully practical, and where Steinsaltz (Steinsaltz on Chullin 79a:10) and Rashi (Rashi on Chullin 79a:10:1) guide us.

The Gemara asks: If we have a female mule in heat, can we mate her with a horse or a donkey? Rabbi Yehuda says we cannot mate her with either, but only with "her own kind" (mina), which Rashi defines as another mule. But why not mate her with the species of her mother? If her mother was a horse, mate her with a horse!

The Gemara answers: We don’t always know who her mother was! So, how do we find out? We listen, and we look.

Abaye says: Listen to her voice. If her voice is deep and braying, she takes after her mother, the donkey. If her voice is shrill and whinnying, she takes after her mother, the horse.

Rav Pappa says: Look at her features. If her ears are large and her tail is small, she is the child of a donkey mother. If her ears are small and her tail is large, she is the child of a horse mother.

The Campfire Translation for Home Life

Think about this, my friend. We are all spiritual hybrids. We are none of us "purebred" anything. We carry the deep, braying voice of our family's struggles, and the high, shrill whinny of our family's joy. We carry the "large ears" of a lineage that knew how to listen, and the "small tail" of a lineage that was self-contained and quiet.

In our homes, we often try to simplify identity. We look at our kids, our partners, or even ourselves, and we try to trace everything back to a single source. "Oh, you get your math brain from your dad," or "You get your anxiety from your mom."

But Chullin 79 teaches us that identity is a complex, beautiful tapestry. Like the mule, we carry physical, emotional, and spiritual traits from both sides of our lineage—and sometimes those traits are in tension!

Have you ever felt like you have the "voice" of one parent but the "ears" of another? Have you ever felt like a walking contradiction—partially structured and domestic, partially wild and free?

This Shabbat is Shabbat Chazon—the "Shabbat of Vision" right before Tisha B'Av. It is the day we look at the broken, fragmented, and mixed-up realities of our world and our history. We don't pretend everything is neat and perfect. We don't pretend we are seamless. Instead, Shabbat Chazon invites us to have vision—to look at our hybridity, our "mule-like" complexity, and see the holiness within it. We are allowed to be a mix of things. We are allowed to have a voice that doesn't match our ears.

Our job in our families is not to force each other into neat, monochromatic boxes. Our job is to listen to the "voice" of those we love, to look at their unique "ears and tails," and to honor the complex lineage that made them who they are.


Insight 2: "The Mystery of the Koy" – Loving the In-Between Spaces in Our Homes

Now let’s move to the second, even more mysterious creature on our Talmudic safari: the Koy (כּוֹי).

What on earth is a koy? The Sages themselves aren't entirely sure! It is a creature of doubtful status. Is it a behemah (a domesticated animal, like a sheep or a goat) or is it a chayah (a wild, undomesticated animal, like a deer or a gazelle)?

This distinction matters immensely in Jewish law. For example, if you slaughter a wild animal (chayah), you are commanded to cover its blood with earth (kisuy hadam). If you slaughter a domesticated animal (behemah), you do not cover its blood. Furthermore, the priestly gifts (the foreleg, jaw, and maw) must be given to a Kohen from a domesticated animal, but not from a wild one.

So, what do you do with a koy?

Let’s look at the debate between Rabbi Eliezer and the Rabbis. Rav Hisda explains that the koy they are arguing about is the offspring of a goat (domesticated) and a doe (wild deer).

If a male deer mates with a female goat, and she gives birth to a koy, what is its status?

The Rabbis are in a state of profound uncertainty (safek). Because they are uncertain, they rule stringently in both directions. On a Festival, you cannot slaughter a koy because of the doubt surrounding whether you need to cover its blood. (Covering the blood requires digging and moving earth, which is generally prohibited on a Festival unless there is a certain mitzvah to do so).

But look at how the Gemara analyzes this. The Rabbis don't just throw their hands up and say, "Well, since we don't know what it is, let's just ignore it!" No. They treat the koy with incredible legal precision and care. They say: Because it might be wild, we must treat it with the respect of a wild creature. But because it might be domesticated, we must also apply the rules of domesticity.

Let's look at how the Rif (Rif Chullin 27a:6) summarizes this:

"The Rabbis are uncertain, and Rabbi Eliezer is uncertain... And the halakha is that we are strict in cases of doubt."

The Campfire Translation for Home Life

The koy represents the "in-between" spaces in our lives and our homes.

Think about it: how many times do we find ourselves, our partners, or our children in a "Koy Phase"?

  • A teenager who is no longer a child (domesticated, safe, predictable) but not yet an adult (fully launched into the wild). They are a koy—half-wild, half-domestic.
  • A career transition where you are no longer who you used to be, but you haven't yet arrived at your new professional identity.
  • A family dynamic during a time of grief, moving, or major change, where the old rules of the "house" don't apply anymore, but the new rules haven't been written.

In our hyper-efficient, goal-oriented world, we hate uncertainty. We want everything to be either a goat or a deer. We want to know: Is this a phase or is this permanent? Are you in or are you out? Do we cover the blood or do we not?

But Chullin 79 teaches us the holiness of the Safek—the sacred nature of doubt. The Sages created an entire category of law for the koy. They didn't try to force the koy to be a goat, and they didn't try to force it to be a deer. They allowed it to exist in its beautiful, complicated middle-ground.

When we encounter a "Koy" moment in our homes—when our kids are acting wild one minute and clinging to us the next, when our relationships feel undefined and vulnerable—our instict is often to react with frustration or to force a resolution.

This text invites us to hold the space. It invites us to say: "This is a Koy moment. It is half-wild and half-domestic. It is uncertain, and that is okay. We will treat this moment with the highest level of care, respect, and curiosity."

On Shabbat Chazon, we look at a world that is deeply out of alignment—a world of transition, of exile, of "in-betweenness." The ultimate vision of Shabbat Chazon is not to erase the struggle, but to have the vision to see that even in the unresolvable, hybrid, uncertain spaces of our lives, the Divine Presence is right there with us, mapping out the laws of love and boundaries.


Micro-Ritual

How do we take this wild safari of Chullin 79 and bring it right into our weekly rhythm?

We do it through a simple, powerful addition to our Friday Night Blessings or our Havdalah ceremony. We call this the "Voice and Ears" Blessing of Complexity.

       The Friday Night / Havdalah "Koy" Ritual
     
     1. THE PAUSE: Stop before blessing or singing.
     2. THE LISTENING: Close eyes. Listen to the room.
     3. THE DUAL BLESSING: 
        - Bless the "Domestic" (Structure, Safety, Roots)
        - Bless the "Wild" (Creativity, Freedom, Wings)
     4. THE NIGGUN: Sing a wordless tune of integration.

Here is how you do it:

Step 1: The Pause of Empathy

Right before you bless your children, your partner, or yourself on Friday night (or right before you light the multi-wick candle for Havdalah), take a deep, conscious breath.

Recall the law of Oto V'et Bno—the prohibition against cutting the thread of connection. Look at the person standing in front of you. Recognize that they are a link in an unbroken chain of ancestors stretching back to Sinai. They carry the DNA, the hopes, the struggles, and the triumphs of generations.

Step 2: The "Voice and Ears" Check-In

Close your eyes for ten seconds. Instead of rushing into the blessing, actually listen to the room.

  • Listen to the "deep voices" (the heavy things your family carried this week—the stress, the tiredness, the donkey-like burdens).
  • Listen to the "shrill voices" (the high-energy, horse-like excitement, the laughter, the anticipation of Shabbat rest).

Silently acknowledge both. Do not judge either. They are both part of the hybrid animal that is your family this week.

Step 3: The Dual Blessing

When you place your hands on your child's or partner's head (or when you hold your hands out to the light of the Havdalah candle), offer a blessing that honors their dual nature.

You can say these words, or write your own campfire-inspired version:

"May you be blessed with the strength of the goat—to build a warm, safe, and structured home, to know your boundaries, and to find comfort in your roots.

And may you be blessed with the spirit of the deer—to run free in the wild spaces of your creativity, to leap over the obstacles in your path, and to never lose your sense of wonder.

You do not have to be just one thing. You are a holy mix. May you carry your dual inheritance with pride, and may the One who makes peace in the high places bring peace and integration to all the different parts of your beautiful soul."

Step 4: The Integration Niggun

Close the ritual by singing a simple, wordless niggun together. Let the voices blend—the deep voices, the high voices, the sweet voices, the gravelly voices. Remember that in a choir, it is the difference in the voices that creates the harmony.


Chevruta Mini

Now, grab a partner—your spouse, your kid, a friend from your old camp days, or even just your own journal—and run through these two questions:

  1. The Voice and the Ears: Abaye and Rav Pappa tell us that even when we don't know our lineage, our "voice" and our "ears" will reveal where we came from. Look at your own life right now. What is one "trait" or "voice" you carry that you know comes from your family's past (your "mother's horse-whinny" or your "father's donkey-bray")? How can you honor that trait this week, even if it feels complicated?
  2. Living with the Koy: Think about a relationship or a situation in your life right now that feels like a koy—it is in an "in-between" space, neither fully wild nor fully domestic, unresolved and uncertain. How would your approach change if, instead of trying to "force" it to be one thing, you treated its uncertainty with sacred care, the way the Sages did?

Takeaway

My friend, as the fire of this study session quietens down to a soft, warm glow, let’s take this truth with us:

We do not live in a world of purebred, easy answers. We live in the brackish, beautiful waters of the estuary. We are, each of us, a holy mixture of horse and donkey, goat and deer. We carry the heavy burdens of our past and the wild, leaping hopes of our future.

This Shabbat Chazon, as we stand on the threshold of Tisha B'Av, let's not look for easy fixes. Let’s have the vision to love the hybrid. Let’s have the courage to listen to the deep voices and the shrill voices, and know that they are all singing the very same song of creation.

Keep your fire burning bright. Bring this Torah home, and let it warm your table this Shabbat.

Shabbat Shalom!