The Jews denounce Christians for not accepting "the Oral Tradition" as equivalent to sacred Scripture. The Oral Tradition is written down in the Talmud and has come down through the centuries.
An analogy might be if the United States Constitution were the Tanak (the Old Testament), and the United State Supreme Court Decisions were the Talmud. The Talmud interprets the Tanak, but it is not the Word of God--it is the opinion of man. The Jews revere it equally with sacred Scripture and denounce Christians for not giving it the same place of honor in our faith that they give it.
We as Christians do not deny that the Talmud has some wisdom in it's interpretations of various passages. What we deny is that it is equal to Scripture.
Another thing I have found in arguing with this man is that the Jews will claim that there are three ways a Jew may obtain forgiveness: sacrifice for the least of his sins, repentance, and charity. I find it interesting that God would have set up a whole system of sacrifice for the least of man's sins--the sins that man is not even aware of committing according to this theory. The greater sins are forgiven by merely repenting or by doing works of charity. I have yet to find this in the Scriptures, but I imagine this is taught in the Talmud.
As Jesus said, they teach for doctrines the commandments of men. They deny the Word of God through their tradition. I don't say that to be unkind. I just say it because that has to be where this theory of the three ways of forgiveness comes from--the tradition of men through the Talmud.
Watch out for those who claim that the Hebrew scriptures are not properly translated into English. This is an attempt to get you rattled. I saw one website my opponent linked to that used the King James Version as its English language translation after he had given me such a hard time for using an NIV or NKJV. It was a hoot!
I hope this helps.