Please complete the following steps to complete the task that will take you out of this area;
1. Purchase the "Punishment Stick + Wing" item you bought from [Warden] Kabal and get a Punishment Stick and a Dragon Wing Voucher.
2. Kill the monsters in the desired amount with the Punishment Stick.
3. Talk again with Warden Kabal and exit the area.
4. When you finish the Discipline Dungeon quest, the Punishment Stick will disappear.
5. You can then return the Dragon Wing Voucher to [Vendor] Kayra and take your wing.
NOTE: Do not destroy (do not throw away) the Punishment Stick athlete, you must be on your way out of the dungeon area.