6x18 - Dragon Ball Z: Dragon Box

The one-on-one battle between Gohan and Dabura gets underway! With his fighting skills rusty, Gohan has a surprisingly difficult battle against an opponent who clearly possesses inferior power. When Dabura sees how annoyed Vegeta is at how poorly the fight is going, he interrupts the battle for some reason, and withdraws. Apparently, he has something in mind, making use of the ability that Babidi has to turn those with evil in their hearts into his servants.