Dragon Ball Super (2015)

S01E52 Master and Pupil Reunited! Gohan and "Future" Trunks!

Title: A Reunion of Master and Student! Gohan and "Future" Trunks! Plot: Piccolo reveals to Future Trunks that Gohan has chosen to leave his training behind to pursue a life as a scholar, which catches Trunks off guard. Both Piccolo and Kuririn encourage Future Trunks to connect with Gohan from their timeline, believing it could be beneficial for him.