解铃系铃 (解鈴繫鈴) jiě líng xì líng

jiě líng xì líng set phrase the person that tied the bell [to the tiger] should also loosen it
Domain: Idiom 成语
Notes: See 解铃还是系铃人 (Guoyu '解鈴繫鈴'; Mathews 1931 '解鈴繫鈴', p. 84)