וְאִם־מְעַ֞ט נִשְׁאַ֧ר בַּשָּׁנִ֛ים עַד־שְׁנַ֥ת הַיֹּבֵ֖ל וְחִשַּׁב־ל֑וֹ כְּפִ֣י שָׁנָ֔יו יָשִׁ֖יב אֶת־גְּאֻלָּתֽוֹ׃
And if there remain but few years unto the year of jubilee, then he shall reckon with him; according unto his years shall he give back the price of his redemption.
Read halakhic rulings (Jewish law) on Leviticus 25:52: and classical halakhic sources.