How to find list of all files modified by user in all clearcase branches?

Question

I am new to cleartool. I did some changes in .cs files from main latest. I have to copy those changes in particular branch. I have tried this command

cleartool find . -all -nvisible -name "*" -version "{created_by(mayur_shingote) && created_since(01-Sep-2017)}" -print