וְאִ֨ם בַּבְּהֵמָ֤ה הַטְּמֵאָה֙ וּפָדָ֣ה בְעֶרְכֶּ֔ךָ וְיָסַ֥ף חֲמִשִׁת֖וֹ עָלָ֑יו וְאִם־לֹ֥א יִגָּאֵ֖ל וְנִמְכַּ֥ר בְּעֶרְכֶּֽךָ׃
And if it be of an unclean beast, then he shall ransom it according to thy valuation, and shall add unto it the fifth part thereof; or if it be not redeemed, then it shall be sold according to thy valuation.
Read kabbalistic (mystical) interpretation of Leviticus 27:27: and classical mystical sources.