Before us is Mishnah 9 in the thirteenth chapter of Maseches Kesubos, the last of the disputes between Admon and the Chachamim.
The case in the Mishnah:
"Shnayim shehotzi'u shtar chov zeh al zeh" - two men, each of whom holds a loan document against the other, and one of the documents is dated later than the other. In other words: Reuven lent Shimon one hundred dollars, and afterward Shimon lent Reuven one hundred dollars, so that the loan Shimon made to Reuven is later than the loan Reuven made to Shimon.
The opinion of Admon:
Admon holds that Shimon, who first borrowed from Reuven and afterward lent to him, can argue against him: "Ilu hayisi chayav lecha, heiach atah loveh mimeni?" - if I still owed you the money from the first loan that you had against me, how did you come and borrow from me? At the time you borrowed from me, you should simply have said: "This is the collection of the loan." Why, then, do I hold a loan document, a note that you were willing to sign stating that you owe me money, at a time when I still owe you?
The opinion of the Chachamim:
The Chachamim disagree and say: "Zeh goveh bishtar chovo v'zeh goveh bishtar chovo" - each one of them collects the hundred dollars that he lent to his fellow, and each debt is collected separately from the other.
In summary: in this Mishnah, which closes the series of disputes between Admon and the Chachamim, we dealt with two men, each of whom holds a loan document against the other, where one document is dated later than the other. According to Admon, the holder of the later document argues against his fellow that if the first debt were still outstanding, the other would not have borrowed from him but would have collected his debt; according to the Chachamim, however, this one collects with his document and that one collects with his document, and each loan is judged on its own.