Daily Rambam (3 Chapters) · Expert – Beit Midrash Analysis · On-Ramp

Mishneh Torah, Creditor and Debtor 10-12

On-RampExpert – Beit Midrash AnalysisDecember 23, 2025

Sugya Map

This sugya in Rambam's Mishneh Torah grapples with the intricate prohibitions of ribbit (usury) as they apply to commodity loans, specifically the classic case of "סאה בסאה" (a se'ah for a se'ah). The central tension lies in preventing ribbit when the value of the commodity fluctuates between the time of the loan and its repayment.

Core Issues

  • Ribbit on Commodity Loans (Se'ah b'Se'ah): The fundamental prohibition against lending a measure of produce to be repaid with the same measure, if the value of the produce might increase. This is primarily a ribbit mukdam (pre-payment interest) concern, or ribbit me'ucheret (late-payment interest) if the lender gains more value than he gave.
  • Pesikat Shearim (Fixing Prices): The conditions under which one may lend commodities without incurring ribbit, primarily through the heter of yatzah ha'sha'ar (market price is established) or yesh lo (the borrower possesses some of the commodity).
  • Keviat Zman (Fixed Repayment Time): The impact of stipulating a specific repayment date on the permissibility of commodity loans, even with other heterim.

Nafka Mina(s)

  • The permissibility of various loan structures involving agricultural products or other commodities.
  • Understanding the underlying ta'am (reason) for ribbit prohibitions in non-monetary transactions.
  • Distinguishing between a permissible sale (pesikah al peirot) and a forbidden loan (halva'at peirot).

Primary Sources

  • Mishneh Torah, Creditor and Debtor 10:1-3
  • Mishnah Bava Metzia 5:7
  • Talmud Bavli, Bava Metzia 74b-75a
  • Shulchan Aruch, Yoreh De'ah 162

Text Snapshot

The Rambam opens his discussion of commodity loans in Chapter 10, building on the principles of pesikah al peirot (selling produce not yet in possession) from Chapter 9.

Mishneh Torah, Creditor and Debtor 10:1:1

כְּשֵׁם שֶׁמֻּתָּר לַמּוֹכֵר לִפְסוֹק עַל הַפֵּרוֹת בְּשַׁעַר שֶׁבַּשּׁוּק, כָּךְ מֻתָּר לִלְוֹת סְתָם הַפֵּרוֹת וּפוֹרְעִין אוֹתָם סְתָם בְּלֹא קְבִיעַת זְמַן עַל שַׁעַר שֶׁבַּשּׁוּק אַחַר שֶׁיָּצָא הַשַּׁעַר: Just as it is permitted for a seller to take an order based on the market price; so, too, it is permitted to give a loan of produce without any conditions, to be returned without any conditions, without establishing a time when it must be returned once the market price has been established.

Mishneh Torah, Creditor and Debtor 10:1:2

כֵּיצַד? הָיוּ חִטִּין בְּשַׁעַר קָבוּעַ שֶׁיָּצָא בַּשּׁוּק וְיוֹדְעִין אוֹתוֹ הַלּוֹוֶה וְהַמַּלְוֶה, לוֹוֶה מֵחֲבֵירוֹ עֶשֶׂר סְאִין חִטִּין וְחַיָּב לְהַחֲזִיר לוֹ עֶשֶׂר סְאִין, אַף עַל פִּי שֶׁהוּקְרוּ הַחִטִּין. לָמָּה? מִפְּנֵי שֶׁבִּשְׁעַת הַלְוָאָה יָצָא הַשַּׁעַר, וְאִלּוּ רָצָה הָיָה קוֹנֶה וּמַחֲזִיר לוֹ שֶׁהֲרֵי לֹא קָבַע לוֹ זְמַן: What is implied? If there was a fixed market price for wheat that was known by both the borrower and the lender, when the borrower borrows ten se'ah of wheat from a colleague, he is obligated to return ten se'ah, even though the price of wheat increased. The rationale is that when he borrowed the wheat from him, the market price was known. If he had wanted to, he could have purchased wheat and returned it, since a minimum term of the loan was not established.

Mishneh Torah, Creditor and Debtor 10:2:1

הָיָה לוֹ מֵאוֹתוֹ הַמִּין שֶׁלָּוָה, מֻתָּר לוֹ לִלְוֹת אוֹתָן הַפֵּרוֹת סְתָם וּפוֹרְעִין אוֹתָם סְתָם בְּלֹא קְבִיעַת זְמַן. וַאֲפִלּוּ לֹא הָיָה לוֹ אֶלָּא סְאָה אַחַת לוֹוֶה עָלֶיהָ כַּמָּה סְאִין. וַאֲפִלּוּ לֹא הָיָה לוֹ אֶלָּא טִפַּת יַיִן אוֹ שֶׁמֶן לוֹוֶה עָלֶיהָ כַּמָּה גַּרְבֵּי יַיִן וְשֶׁמֶן: If the borrower possesses some of the type of produce that he seeks to borrow, it is permissible for him to borrow this produce without any conditions, to be returned without any conditions, without establishing a time when it is due. Even if he possesses only a se'ah, he may borrow many se'ah because of it. Even if he possesses only a drop of oil or wine, he may borrow several jugs of wine and oil because of it.

Dikduk/Leshon Nuance

  • "סתם הפירות ופורעין אותם סתם בלא קביעת זמן" (10:1:1): The repeated "סתם" (without conditions) and the crucial "בלא קביעת זמן" (without establishing a time) are key. Steinsaltz notes that this distinguishes it from a pesikah sale, where a fixed time is permissible even if the seller doesn't have the item. For a loan, a fixed time introduces ribbit.
  • "על שער שבשוק אחר שיצא השער" (10:1:1): This specifies two conditions for the heter of yatzah ha'sha'ar: the market price must be established, and it must be known to both parties (as elucidated in 10:1:2).
  • "אף על פי שהוקרו החיטין" (10:1:2): This highlights the fundamental challenge of commodity loans – price fluctuation. The heter allows returning the measure, even if the value has increased. Steinsaltz clarifies: "ועל פי ערכן הכספי נמצא שהחזיר יותר ממה שלווה" (And according to their monetary value, it turns out that he returned more than he borrowed). This chiddush (novelty) is the core of the heter.
  • "וְאִלּוּ רָצָה הָיָה קוֹנֶה וּמַחֲזִיר לוֹ שֶׁהֲרֵי לֹא קָבַע לוֹ זְמַן" (10:1:2): The Rambam's ta'am for yatzah ha'sha'ar – the borrower could have repaid immediately by purchasing the commodity. This immediate possibility negates the ribbit concern, as there's no inherent waiting period generating interest. Steinsaltz: "מכיוון שהיה יכול לפרוע לו מיד סאה אחרת באותה עלות, אין בכך ריבית" (Since he could have repaid him immediately with another se'ah at the same cost, there is no ribbit in this) Steinsaltz on Mishneh Torah, Creditor and Debtor 10:1:4.
  • "הָיָה לוֹ מֵאוֹתוֹ הַמִּין שֶׁלָּוָה" (10:2:1): This introduces the second major heter, "Yesh Lo" (the borrower possesses it). The Rambam emphasizes that even a minimal amount suffices ("אלא טיפת יין או שמן"). This is a powerful heter, allowing loans even if the market price is unknown (as stated later in 10:2:2). Steinsaltz notes this: "אפשרות נוספת להיתר בהלוואת פירות תמורת פירות היא כשיש כבר ללווה מאותו סוג של פירות, שאז מותר אפילו אם לא יצא השער, ובתנאי שלא קבע לו זמן" (Another possibility for permission in lending produce for produce is when the borrower already has that type of produce, in which case it is permitted even if the market price has not been established, and on condition that no time was set for repayment) Steinsaltz on Mishneh Torah, Creditor and Debtor 10:2:2.

Readings

The Rambam's halachot on ribbit in commodity loans codify a complex sugya from Bava Metzia 74b-75a. The core challenge is that a loan of "סאה בסאה" (a se'ah for a se'ah) inherently carries a risk of ribbit if the commodity's value increases, as the borrower would be returning something of greater monetary worth than he received. The Gemara, followed by the Rishonim and Acharonim, develops two primary heterim (permissive conditions) to circumvent this prohibition, which the Rambam presents: yatzah ha'sha'ar (market price established) and yesh lo (the borrower possesses the commodity).

Ramban, Bava Metzia 74b s.v. "אמר רב נחמן"

The Ramban, in his Chiddushim to Bava Metzia 74b, delves deeply into the nature of ribbit in commodity loans. He explains that the prohibition stems from a rabbinic decree (gezeirah) to prevent the appearance of ribbit mukdam (interest paid in advance) or ribbit me'ucheret (interest paid later). When one borrows a se'ah of wheat and returns a se'ah of wheat, if the price of wheat rises, the lender effectively receives more value than he gave. This is perceived as ribbit.

The Ramban, however, clarifies the heterim that the Rambam codifies.

  1. Yatzah ha'Sha'ar (Market Price Established): The Ramban agrees with the Gemara's reasoning that if the market price is known and stable at the time of the loan, the borrower could have immediately purchased the commodity and repaid it. This immediate option renders the loan akin to a monetary transaction, where the value is fixed. The lender is not waiting for a price increase, nor is the borrower paying extra for the delay. The Ramban emphasizes that this heter only works if no specific repayment time (keviat zman) is set, as the Rambam states ("בלא קביעת זמן") Mishneh Torah, Creditor and Debtor 10:1:1. If a time is set, even with an established market price, it reintroduces the ribbit concern, as the borrower is obligated to wait and the lender is guaranteed to receive a commodity that might increase in value by that fixed date. The Ramban's chiddush here is emphasizing that the "potential for immediate repayment" is what fundamentally shifts the transaction from a problematic commodity loan to a permissible one, by essentially fixing its monetary value at the outset.

  2. Yesh Lo (Borrower Possesses the Commodity): This heter is particularly fascinating. The Gemara states that if the borrower has even a minute amount (kapi d'mishcha) of the commodity, he may borrow a large quantity. The Ramban explains that this is because the borrower is not truly lending "סאה בסאה" in the problematic sense. Rather, the small amount he possesses serves as a serach davar (a trace of the item) or a zechut kinyan (a right of acquisition) that allows the borrower to view the transaction as if he is repaying from his own existing stock. This negates the concern of lending something he doesn't own, which is a key element in ribbit for commodities. The Ramban explains that this heter also requires "בלא קביעת זמן" (without establishing a time) Mishneh Torah, Creditor and Debtor 10:2:1. The chiddush of the Ramban here is the idea that yesh lo functions not as a literal kinyan for the entire loan, but as a conceptual anchor that transforms the halva'ah from a pure "promise to return an equivalent future item" (which is problematic) to a "repayment from an existing, albeit small, stock."

Rosh, Bava Metzia 5:58

The Rosh, in his commentary to Bava Metzia, largely aligns with the Ramban's understanding but often offers a more direct, halachic approach. He frames the prohibition of se'ah b'se'ah as a gezeirah against ribbit that might arise from price fluctuations, especially if the borrower does not own the commodity or if the market price is not established.

  1. Yatzah ha'Sha'ar: The Rosh reiterates that if the market price is established and known, the loan is permissible because the borrower could theoretically repay immediately by buying the commodity. This "immediate repayment potential" means there's no delay for which ribbit could be charged. The Rosh emphasizes that this applies only when the loan is "סתם" (without conditions) and "בלא קביעת זמן" (without a fixed repayment time), mirroring the Rambam's text Mishneh Torah, Creditor and Debtor 10:1:1. If a fixed time is set, the concern of ribbit returns, as the value at the time of repayment might exceed the initial value, and the borrower is bound to that later date. The Rosh's chiddush is perhaps in his emphasis on the shem halva'ah (the nature of the transaction as a loan). When yatzah ha'sha'ar exists, and there's no fixed time, it almost morphs into a loan of money whose value is denominated in commodities, rather than a pure commodity loan.

  2. Yesh Lo: The Rosh also affirms the heter of yesh lo, even for a minimal amount. He connects this to the concept of serach davar – that the borrower already has a connection to the commodity. This is not merely a formality; it implies that the borrower is not borrowing "nothingness" that he will eventually acquire, but rather supplementing his existing stock. This distinction is crucial in halachot ribbit. The Rosh, like the Ramban and Rambam, stresses that this heter also requires "בלא קביעת זמן" Mishneh Torah, Creditor and Debtor 10:2:1. If a time is fixed, even with yesh lo, it is forbidden, because the lender is essentially waiting for the price to rise, and the borrower is bound to deliver at that potentially higher value. The Rosh's chiddush often lies in his practical application and consolidation of the Gemara's arguments, making it clear that yesh lo transforms the halva'ah from a speculative venture into a more secure, less problematic transaction from a ribbit perspective.

Both Rishonim highlight that the Rambam's synthesis of these two heterim (established market price and borrower possessing the item) along with the crucial condition of "no fixed repayment time" is the bedrock of permissible commodity loans. The chiddush of these Rishonim lies in articulating the underlying rationale and scope of these heterim within the broader framework of ribbit prohibitions.

Friction

One of the most profound points of friction, and indeed a significant kushya often raised, revolves around the Rambam's formulation of the heter of "Yesh Lo" (the borrower possessing the commodity) in Mishneh Torah, Creditor and Debtor 10:2:1. The Rambam states: "וַאֲפִלּוּ לֹא הָיָה לוֹ אֶלָּא טִפַּת יַיִן אוֹ שֶׁמֶן לוֹוֶה עָלֶיהָ כַּמָּה גַּרְבֵּי יַיִן וְשֶׁמֶן" (Even if he possesses only a drop of oil or wine, he may borrow several jugs of wine and oil because of it).

The Strongest Kushya

The kushya is: What is the fundamental difference between a borrower who possesses a "drop" of the commodity and one who possesses nothing? If the borrower has only a drop but borrows many jugs, he is still primarily repaying with a commodity he does not possess at the time of the loan. The Chachamim prohibited lending "סאה בסאה" precisely to prevent ribbit when the borrower repays with something that may appreciate in value and which he must acquire later. How does a minuscule amount fundamentally alter this dynamic, especially when the bulk of the loan is still to be acquired? It seems like a mere technicality, yet it unlocks a major heter. The Gemara (Bava Metzia 74b) itself grapples with this, stating "הא דאית ליה, הא דלית ליה" (This is when he has, this is when he doesn't have), but the underlying ta'am for such a seemingly disproportionate heter remains elusive without deeper analysis. If the ribbit concern is about the future acquisition of a commodity that might rise in price, how does a drop negate that?

Best Terutz

The terutz often offered by Rishonim and Acharonim, which helps resolve this kushya, hinges on the concept of serach davar (a "trace" or "connection" to the item) and the distinction between a loan of actual items versus a loan of future items to be acquired.

  1. Conceptual Shift: From Future Acquisition to Present Ownership (Ramban, Rosh): The Ramban (Bava Metzia 74b s.v. "דלית ליה") and Rosh (Bava Metzia 5:58) explain that when the borrower possesses even a kapi d'mishcha (a drop), the loan is no longer viewed as a transaction where the borrower is acquiring something entirely new and future-dependent. Instead, the small amount he possesses conceptually connects him to the entire category of that commodity. It allows the halva'ah to be understood as if he is borrowing to supplement his existing stock, or as if he is repaying from a pool of that commodity which he already "owns" in principle. The ribbit prohibition on "סאה בסאה" is fundamentally a gezeirah (rabbinic decree) against the appearance or potential of ribbit where one benefits from the other's delay in acquiring something not yet in hand. When "יש לו," this gezeirah is lifted because the borrower is not considered to be acquiring something ab initio for repayment; he is merely exchanging similar items from his "possession."

  2. No Chashash Ribbit Mukdam/Me'ucheret (Rambam's Ta'am): The Rambam's own ta'am for the heter of yatzah ha'sha'ar is "וְאִלּוּ רָצָה הָיָה קוֹנֶה וּמַחֲזִיר לוֹ שֶׁהֲרֵי לֹא קָבַע לוֹ זְמַן" (If he had wanted to, he could have purchased wheat and returned it, since a minimum term of the loan was not established) Mishneh Torah, Creditor and Debtor 10:1:2. While this is specifically for yatzah ha'sha'ar, the underlying principle can inform yesh lo. If the borrower has even a drop, he is considered to have the capacity to repay now from his existing stock (or to substitute with money based on the now-fixed value of that stock), thereby negating the idea of a deferred payment for which the commodity's price might rise. The "drop" makes the loan instantaneously repayable in kind, even if not actually repaid, because he has "it." This prevents the ribbit mukdam concern, as the lender is not truly extending credit for the acquisition of a future item. This terutz views the "drop" as establishing a present, tangible link to the commodity, making the loan less about a future obligation and more about a present exchange of similar items.

In essence, "Yesh Lo" transforms the nature of the halva'ah. Without it, a loan of "סאה בסאה" is a loan of a future obligation to acquire and return a commodity, which is susceptible to ribbit through price fluctuations. With "Yesh Lo," even a drop, the loan is viewed as a loan of existing items, where the borrower already has a stake, thereby mitigating the rabbinic concern for ribbit. The gezeirah of Chachamim is specifically targeted at scenarios where the borrower does not own the item, and the "drop" provides the crucial loophole to avoid that gezeirah.

Intertext

The Rambam's discussion in Creditor and Debtor 10 draws directly from fundamental sugyot in Seder Nezikin, particularly the fifth chapter of Masechet Bava Metzia, which is entirely dedicated to halachot ribbit.

Bava Metzia 5:7 (Mishnah) & 74b-75a (Gemara)

The very foundation of this sugya is the Mishnah in Bava Metzia 5:7:

"לא ילוה אדם סאה בסאה, אבל מותר ללוות מן הגרנות" A person should not lend a se'ah for a se'ah, but it is permitted to borrow from the granaries.

This Mishnah immediately sets up the core prohibition. The Gemara on Bava Metzia 74b-75a then extensively expounds on this, developing the heterim that the Rambam codifies.

  • "הא דאית ליה, הא דלית ליה" (Bava Metzia 74b): This Gemara passage is the direct source for the Rambam's heter of "Yesh Lo." The Gemara explicitly states that the prohibition applies when the borrower "לית ליה" (does not have) the commodity, but it is permitted when "אית ליה" (he has it). The discussion then clarifies that "אית ליה" means even a minute quantity, as the Rambam cites ("טיפת יין או שמן") Mishneh Torah, Creditor and Debtor 10:2:1. The Gemara's kushya and terutz on why "אית ליה" works – whether it's because he can repay immediately, or it conceptually fixes the value – directly informs the Rishonim's interpretations.
  • "שער יצא לחלות" (Bava Metzia 74b): This phrase from the Gemara is the origin of the heter of "Yatzah ha'Sha'ar" (market price has been established). The Gemara explains that if the market price is known, the borrower can always purchase the commodity and repay immediately, thus removing the ribbit concern that arises from potential price fluctuations. This is precisely the Rambam's explanation: "וְאִלּוּ רָצָה הָיָה קוֹנֶה וּמַחֲזִיר לוֹ שֶׁהֲרֵי לֹא קָבַע לוֹ זְמַן" Mishneh Torah, Creditor and Debtor 10:1:2. The Gemara debates whether yatzah ha'sha'ar is sufficient even with a fixed time, ultimately concluding it's not without yesh lo, which leads to the Rambam's strict requirement of "בלא קביעת זמ"ן for both heterim.

Shulchan Aruch, Yoreh De'ah 162:1-2

The halachot codified by the Rambam here are directly reflected in the Shulchan Aruch, Yoreh De'ah, Chapter 162, which deals with halva'at peirot (loans of produce).

  • YD 162:1: "אסור ללוות סאה בסאה, דהיינו שילווה לו חטים ויחזיר לו חטים, גזירה משום ריבית... במה דברים אמורים, כשאין לו ללוה באותה שעה שיכול לפרוע לו" (It is forbidden to lend a se'ah for a se'ah, meaning one lends wheat and he returns wheat, a rabbinic decree due to ribbit... When does this apply? When the borrower does not have [the commodity] at that time to repay him). This clearly echoes the Rambam's "Yesh Lo" heter. The Rema adds that this is even if the price decreases, the prohibition stands.
  • YD 162:2: "ואם יש ללוה מאותו המין אפילו כל שהוא, מותר ללוות סאה בסאה, ואפילו קבע לו זמן" (If the borrower has even a minimal amount of that type, it is permitted to lend a se'ah for a se'ah, even if he set a time). This is a crucial point of divergence from the Rambam. The Shulchan Aruch, following the Rosh and others, permits "Yesh Lo" even with a fixed time, whereas the Rambam explicitly states "בלא קביעת זמן" for both heterim. This highlights a significant machloket (dispute) among the Rishonim regarding the stringency of ribbit laws and the scope of these heterim. The Rambam's position is generally more stringent in this area.

These intertexts demonstrate that the Rambam is not creating new halachot but rather meticulously codifying and interpreting established sugyot. The differences, such as the machloket regarding keviat zman with yesh lo, represent genuine debates among the poskim on the precise boundaries of ribbit prohibitions.

Psak/Practice

The Rambam's psak regarding commodity loans (סאה בסאה) in Creditor and Debtor 10:1-3 is highly influential, though not universally followed in all its particulars. His rulings underscore the deep sensitivity to ribbit in Jewish law, extending beyond monetary loans to any transaction where value might be gained through deferred repayment of an equivalent item.

In practice, the Rambam establishes two key heterim (permissive conditions) for lending "סאה בסאה":

  1. Yatzah ha'Sha'ar (Market Price Established): If the market price is known to both parties when the loan is made, and crucially, no fixed repayment time is set, the loan is permissible. The rationale is that the borrower could immediately purchase and repay, thus neutralizing the ribbit concern.
  2. Yesh Lo (Borrower Possesses the Commodity): If the borrower already possesses even a minimal amount (a "drop") of the commodity he is borrowing, and again, no fixed repayment time is set, the loan is permissible. This heter is powerful as it works even if the market price is unknown.

The Rambam's strict insistence on "בלא קביעת זמן" (without establishing a time) for both heterim is a meta-psak heuristic that emphasizes maximum precaution against ribbit. For him, a fixed term inherently reintroduces the ribbit concern, as it locks in the potential for the lender to receive a greater value at a later date, even if the measure is the same. This stands in contrast to other Rishonim, like the Rosh, and subsequently the Shulchan Aruch (YD 162:2), who permit "Yesh Lo" even with a fixed repayment time. The Shulchan Aruch's position is the dominant psak for Ashkenazim.

Therefore, practically:

  • For Sefardim (following Rambam/Shulchan Aruch YD 162:1 but often leaning on strict interpretations): The Rambam's stringency regarding keviat zman is highly relevant. Commodity loans are generally restricted unless both "yatzah ha'sha'ar" and "b'lo keviat zman" are present, or "yesh lo" and "b'lo keviat zman" are present.
  • For Ashkenazim (following Rema YD 162:2): A loan of "סאה בסאה" is permitted if the borrower possesses even a small amount of the commodity, even if a specific repayment time is set. This is a significant leniency compared to the Rambam. If the borrower does not possess the commodity, then "yatzah ha'sha'ar" and "b'lo keviat zman" are still required.

In contemporary halacha, these rules are applied to any loan of fungible items (e.g., building materials, certain raw goods). The general principle remains: avoid situations where the lender might gain monetary value from the natural fluctuation of the commodity's price between the loan and repayment.

Takeaway

The Rambam meticulously navigates the ribbit prohibitions on commodity loans, emphasizing that only with established market prices or existing borrower possession, and critically, no fixed repayment time, can the specter of usury be averted. This highlights a fundamental Chazalic concern: any benefit derived from delaying repayment, even in kind, can transgress ribbit.