Bava Metzia 109B

וספר מתא ⁠– כולן כמותרין ועומדין דמי. כללא דמילתא: כל פסידא דלא הדר ⁠– כמותרין ועומדין דמי.

and a town scribe who drafts documents on behalf on the local residents, all of these are considered forewarned. Therefore, any loss incurred due to them is deducted from their wages, and they are fined without the need for prior warning. The principle of this matter is: With regard to any loss that is not recoverable they are considered forewarned.

ההוא שתלא, דאמר להו: הבו לי שבחאי דבעינא למיסק לארעא דישראל. אתא לקמיה דרב פפא בר שמואל. אמר להו: הבו ליה שבחיה. אמר ליה רבא: איהו אשבח, ארעא לא אשבח! אמר ליה: אנא פלגא דשבחא קאמינא לך. אמר ליה: עד האידנא הוה שקיל בעל הבית פלגא ושתלא פלגא. השתא בעי למיתב מנתא לאריסא! אמר ליה: ריבעא דשבחא קאמינא.

§ The Talmud relates: There was a certain planter who said to the owner of the field: Give me the value of my enhancement because I wish to ascend to Eretz Yisrael. The owner came for a ruling before Rav Pappa bar Shmuel, who said to him: Give the planter the value of his enhancement. Rava said to Rav Pappa bar Shmuel: Did he alone enhance the field, while the land did not enhance it? He cannot be credited with all the improvement. Rav Pappa bar Shmuel said to Rava: I am telling you that he is entitled to half the value of the enhancement. Rava said to him: Until now the owner of the land would take half and the planter would take half, while the planter would work the field. Now the owner also needs to give a portion to the sharecropper, so that the sharecropper will continue working the field. Rav Pappa bar Shmuel said to him: I am telling you to give him 1/4th of the value of the enhancement, half of the sum to which he is entitled.

סבר רב אשי למימר ״ריבעא״ דהוא דנקא. דאמר רב מניומי בריה דרב נחומי: באתרא דשקיל שתלא פלגא ואריסא תילתא, האי שתלא דבעי לאסתלוקי ⁠– יהבינן ליה שבחא ומסלקינן ליה כי היכי דלא נמטייה הפסד לבעל הבית.

Rav Ashi thought to say that when he referred to 1/4th he meant 1/4th that is 1/6th, i.e., 1/4th of the sum due to the owner, as the sum due to the owner is 2/3rds of the entire yield. This payment would therefore amount to 1/6th of the total. As Rav Minyumi, son of Rav Naḥumi, said: In a location where the planter takes half the fruit and the sharecropper takes 1/3rd, with regard to a planter who wants to leave, we give him his share of the value of the enhancement and remove him in such a manner so that the homeowner should suffer no loss.