Bava Batra 65B

הרי כולן מכורין.

all these components are sold as part of the sale of the house.

גמ׳ לימא מתניתין דלא כרבי מאיר ⁠– דאי רבי מאיר, הא אמר: מכר את הכרם ⁠– מכר תשמישי כרם!

Talmud: The Talmud suggests: Let us say that the Mishnah that distinguishes between different types of household items is not in accordance with the opinion of R' Meir. As if it is in accordance with the opinion of R' Meir, doesn’t he say in a baraita (78b): If one sold a vineyard, he has sold all of the utensils of the vineyard, including the movable ones? The same should be true for the sale of a house.

אפילו תימא רבי מאיר ⁠– התם קביע, הכא לא קביע. והא מפתח דומיא דדלת קתני ⁠– מה דלת דקביעא, אף מפתח דקביע! אלא מחוורתא, מתניתין דלא כרבי מאיר.

The Talmud answers: You may even say that the Mishnah was taught in accordance with the opinion of R' Meir, as a distinction can be made between the two cases. There, in the case of a vineyard, the reference is to utensils that are fixed in the vineyard and never removed from it, and therefore they are included in the sale, while here, in the case of a house, the Mishnah is referring to utensils that are not fixed in the house, and therefore they are not part of the sale. The Talmud objects: But doesn’t the Mishnah teach the halakha governing a key in similar fashion to the halakha governing the door, indicating that just as a door is fixed in the house, so too, a key is fixed in the house? Rather, it is clear that the Mishnah is not in accordance with the opinion of R' Meir.

תנו רבנן: המוכר את הבית ⁠– מכר את הדלת ואת הנגר ואת המנעול, אבל לא את המפתח; מכר את המכתשת החקוקה, אבל לא את הקבועה; מכר האיצטרוביל, אבל לא את הקלת, לא את התנור, ולא את הכירים, ולא את הריחים. רבי אליעזר אומר: כל המחובר לקרקע ⁠– הרי הוא כקרקע.

A baraita states (Tosefta 3:1): One who sells a house has sold the door and the door bolt and the lock, but he has not sold the key. He has sold the mortar that was hollowed out of the ground but not the mortar that was fixed to the ground after its construction. He has sold the immovable lower millstone but not the portable upper stone. And he has sold neither the oven, nor the double stove, nor the hand mill. R' Eliezer says: The principle is that any item attached to the ground is considered like the ground and included in the sale.