Leviticus 22:23 Kabbalah

וְשׁ֥וֹר וָשֶׂ֖ה שָׂר֣וּעַ וְקָל֑וּט נְדָבָה֙ תַּעֲשֶׂ֣ה אֹת֔וֹ וּלְנֵ֖דֶר לֹ֥א יֵרָצֶֽה׃

Either a bullock or a lamb that hath any thing too long or too short, that mayest thou offer for a freewill-offering; but for a vow it shall not be accepted.

Read kabbalistic (mystical) interpretation of Leviticus 22:23: and classical mystical sources.