Mishnayos Sheviis Perek 10 Mishnah 9

המחזיר חוב בשביעית (one who repays a debt cancelled by the Seventh Year) – the borrower/debtor says to the lender/creditor, “even so/nevertheless,” and returns to him his money, the Sages are pleased with him.

לא יחזיר לבניו – he is not obligated to return [the debt] to his children (i.e., of the convert), if the convert died.

ואם החזיר רוח חכמים ננוחה הימנו – and exactly to his children that were converted with him, because an idolater inherits his father from the Torah, as it is written (Deuteronomy 2:5): “I have given the hill country of Seir as a possession to Esau,” and if he doesn’t return [the loan] to his (i.e., the convert’s) children, one can suspect lest they will return to their original nature when they say,” if we were idolaters, we would inherit their fathers, and it would be necessary to return [the debt] to them, but if their parents were not were lacking holiness (i.e., the children were conceived while they were heathens) but at their births, they were in holiness (i.e., the children were born when they became Israelites), they didn’t inherit their fathers from the Torah, for their inheritance would not ever be appropriate for them , one cannot suspect this less they return to their original nature, and one who ever restores it (i.e., the inheritance) to them, the Sages are not pleased with him.

כל המטלטלין נקנין במשיכה – and whenever he did not take possession by drawing or seizing an object each one of them can retract, and even though he (i.e., the potential purchaser) gave the money, the monies do not purchase until he draws/seizes the object that is acquired, but nevertheless, a person who fulfills his word and doesn’t retract, and even if he did not take possession by drawing or seizing an object, the Sages are pleased with him, for it is taught in a Baraitha (Talmud Bava Metzia 49a on Leviticus 19:36): “You shall have [an honest balance, honest weights,] an honest ephah, and an honest hin,” that your “no”/negative response will be in righteousness and your “yes”/positive response will be in righteousness.