What was the six commandment on Jesus' list of "the commandments"?

In Jesus' response to the rich young man, what was the six commandment on his list of "the commandments"?
Thou shalt love thy neighbor as thyself. Matthew 19:17-19 . . . if thou wilt enter into life, keep the commandments. He saith unto him, Which? Jesus said, Thou shalt do no murder, Thou shalt not commit adultery, Thou shalt not steal, Thou shalt not bear false witness, Honour thy father and thy mother: and, Thou shalt love thy neighbour as thyself.
Defraud not. Mark 10:19 Thou knowest the commandments, Do not commit adultery, Do not kill, Do not steal, Do not bear false witness, Defraud not, Honour thy father and mother.
There was no sixth. Jesus listed only five commandments. Luke 18:20 Thou knowest the commandments, Do not commit adultery, Do not kill, Do not steal, Do not bear false witness, Honour thy father and thy mother.

Dwindling in Unbelief: The Ten Commandments: Jesus couldn't name them all either.
Christian Responses (none yet)