db2 ver7 on liunux

Trying to get only the grant statement given by grantor SYSIBM to
<user1> on <user2>.<table_name.
The USER enviroment set to instance owner

I am using this command

db2look -d <db_name> -z <user1> -x

but the grants are not showing , I am seeing the grants from the
syscat.tabauth.

regards,

From the doc:
-xd
|
If this option is specified, the db2look utility will generate all authorization | DDL including authorization DDL for objects whose authorizations were granted | by SYSIBM at object creation time. |

I would try it without the -z (schema) parameter. The schema name is not necessarily the same as the userid.

The xd option is introduced in version 8 , what about ver 7.

regards,

Mujeeb