No, but sayings that were known to be from Jesus can be found in red letter Bibles. The NT red letter verses represent quotes attributed to Him.
Jesus only account of writing was in the sand when a woman was accused of adultery. Now if someone is caught in the act then there should be two people presented for stoning as required by Jewish laws.
Anyway while He wrote in the sand the accusers dropped their rocks and left eventually leaving only Jesus and the woman.
He asks her “Woman where are your accusers?”
“Gone.” she replies.
Then Jesus replied “Go and sin no more”
- as I recall anyway
Here’s a link with much more detail.
http://www.justcallmejohnny.com/WhyDidJesusWriteInTheDirt.html
So what did people say He said, that would make Him a lunatic if they weren’t true?