«اِلشِّرِيكِ الْمِخَالِفْ لَا عَاشْ وَلَا بَقَى»

The saying condemns a partner who works against the one he is joined with, not one who merely holds a different view, and it does more than criticize: it calls down misfortune on him. A partnership depends on agreement, so a contrary partner is treated as a burden whose continued existence the speaker wishes away.

In a variant, the target is a companion who always stays at one's side rather than a partner. That version applies the same anger to a close companion who constantly opposes or obstructs, so the curse can reach personal company as well as shared business.

Use this when venting anger at an associate or constant companion who keeps opposing, undercutting, or refusing to cooperate with the person bound to him. It is a curse, so it suits heated complaint, not polite criticism.