解铃还须系铃人

解铃还须系铃人 [jiě líng hái xū jì líng rén]

1. ■ In order to untie the bell, the person who tied it is required.; It is better for the doer to undo what he has done.; Let him who tied the bell on the tiger take it off.; Let the mischief-maker undo the mischief.; Let them untie the knot they themselves tied.; One's fault should be amended by oneself.; Since one caused the trouble it's up to him to fix it.; The one who creates a problem should be the one to solve it.; Whoever started the trouble should end it.