If you want to list all files owned by a specific user in a specific directory, you can use "hdfs dfs -ls" with grep.
Syntax:
hdfs dfs -ls /path | grep "\- username"
Example:
# hdfs dfs -ls / | grep "\- hdfs"
drwxrwxrwt - hdfs supergroup 0 2021-07-29 16:02 /tmp
drwxr-xr-x - hdfs supergroup 0 2021-07-31 02:26 /user
If you want to recursively list files add -R after -ls
I hope this answered your question.