Kabbalah do Kapłańska 7:12

The punishment of having relations with a maidservant is stated in Vayikra Rabbah: “If he offer it for a thanksgiving” (Leviticus 7:12), that which it says “Fools mock at making amends for sin” (Proverbs 14:9), Rabbi Yudan says that this fool states his punishment verbally to all and says ‘Do I not need to bring a sin-offering nor a guilt-offering?’ Rabbi Yudan said in the name of Rabbi Levi: these people that rule that it is permitted to have relations with maidservants in this World, the Creator hangs them by the crown of their head in the World to Come, as it says “Surely God will shatter the head of His enemies, The hairy crown of him who goes on in his guilty deeds.” (Psalms 68:22). Meaning that all will say: that man will perish because of his misdeed.