Lost and Found Dragon Ball: Doragon bôru : Season 1 Episode 123

With Piccolo Daimao's reign of terror at an end, Goku has time to mend his wounds. As he heals he learns that there may be a way to revive his lost friends - face to face meeting with the creator of the Dragon Balls! The one problem is that the only way to get to the mysterious God is by using his Nyoi-bo, and it has gone missing!