物归原主

to return something to its rightful owner

owner / master / host / individual or party concerned / God / Lord / main / to indicate or signify / trump card (in card games)

surname Yuan / (Japanese surname) Hara

former / original / primary / raw / level / cause / source

thing / object / matter / abbr. for physics 物理

surname Gui

to return / to go back to / to give back to / (of a responsibility) to be taken care of by / to belong to / to gather together / (used between two identical verbs) despite / to marry (of a woman) (old) / division on the abacus with a one-digit divisor