Bava Kamma 107B

צריכין כפירה במקצת והודאה במקצת, ואלו הן: שומר חנם והשואל, נושא שכר והשוכר.

require denial of a part of the claim and admittance of a part of the claim in order to be obligated to take an oath when someone claims to have given them an item as a deposit, and these are they: An unpaid bailee, and a borrower, a paid bailee, and a renter.

אמר רבא: מאי טעמא דרמי בר חמא? שומר חנם ⁠– בהדיא כתיב ביה: ״כי הוא זה״. שומר שכר ⁠– יליף ״נתינה״–״נתינה״ משומר חנם.

The Talmud quotes the source for this statement. Rava said: What is the reasoning for the statement of Rami bar Ḥama? Concerning an unpaid bailee, it is explicitly written with regard to him: “This is it,” as explained earlier. Concerning a paid bailee, Rami bar Ḥama learns by means of a verbal analogy to the term giving used with regard to a paid bailee from the term giving used with regard to an unpaid bailee, since the verses about both a paid and an unpaid bailee begin: “If a man gives his neighbor” (Exodus 22:6, 9).

שואל ⁠– ״וכי ישאל״, ויו מוסיף על ענין ראשון. שוכר ⁠– אי למאן דאמר כשומר שכר, היינו שומר שכר; אי למאן דאמר כשומר חנם, היינו שומר חנם.

Rava continues: Rami bar Ḥama learns the halakha concerning a borrower from the verse: “And if [vekhi] a man borrow” (Exodus 22:13). There is a principle that the conjunction “and,” represented by the letter vav, adds to the previous topic. Based on this principle, the halakhot of a borrower are connected to those of the subject of the previous verse, the bailee. Concerning a renter, if Rami bar Ḥama is stating his ruling according to the one who says that a renter is like a paid bailee, this is the same as a paid bailee; if he is stating his ruling according to the one who says that a renter is like an unpaid bailee, this is the same as an unpaid bailee.