How to use “cat” command on “find” command's output?

You can do this with find alone using the -exec action:

find /location -size 1033c -exec cat {} +

{} will be expanded to the files found and + will enable us to read as many arguments as possible per invocation of cat, as cat can take multiple arguments.

If your find does not have the + extension or you want to read the files one by one:

find /location -size 1033c -exec cat {} ;

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If you want to use any options of cat, do:

find /location -size 1033c -exec cat -n {} +
find /location -size 1033c -exec cat -n {} ;