How to find a string in my user

Hello all,

what is the find command to locate the string in my user.
string is "ciadev" .this string locate multiple files which in different directories.so please write the find command for this issue.Iam looking forward from you.

Thanks Regards
Rajkumar G:)

find /DIR1 /DIR2 -type f -exec grep -l ciadev {} \;