וְאִם־לֹ֤א יִגְאַל֙ אֶת־הַשָּׂדֶ֔ה וְאִם־מָכַ֥ר אֶת־הַשָּׂדֶ֖ה לְאִ֣ישׁ אַחֵ֑ר לֹ֥א יִגָּאֵ֖ל עֽוֹד׃
And if he will not redeem the field, or if he have sold the field to another man, it shall not be redeemed any more.
Read halakhic rulings (Jewish law) on Leviticus 27:20: and classical halakhic sources.