it takes two to tango
Definition:  in a situation, fault always lies with the parties involved, i.e., to say you cannot put blame on one party; both parties will be equally responsible
Usage:  why are you all blaming me for this, it takes two to tango! you played a part as well

SEPEDI
Translation:  e tšea bobedi go bina thango
Proverb: ya šika le yeo e garago le yona e tla gara

XITSONGA
Translation:  swi lava vanhu vambirhi ku cina
Proverb: nyimpi i ya vambirhi

TSHIVENḒA
Translation:  zwi dzhia vhavhili u tshina
Proverb: ho ṱangana Marema na Mukhoro