城门失火，殃及池鱼 城門失火，殃及池魚
chéng mén shī huǒ , yāng jí chí yú
释义
a fire in the city gates is also a calamity for the fish in the moat (idiom); the bystander will also suffer; fig. you can't escape responsibility for your actions; ask not for whom the bell tolls - it tolls for thee