BT Ber 59b(41) :הא דאיכא שותפא בהדי{{ה}} והא דליכא שותפא בהדיה‏ : this refers to where he has a partner and that to where he does not have a partner
See the entire entry for šaw/ūtāp̄, šaw/ūtāp̄ā n.m. associate, partner