liǎng​hǔ​xiāng​zhēng, bì​yǒu​yī​shāng

mutual harm

Senses

两虎相争,必有一伤/ 兩虎相爭,必有一傷 liǎng​hǔ​xiāng​zhēng, bì​yǒu​yī​shāng mutual harm

lit. if two tigers fight, one will get injured; fig. if two powerful parties engage in conflict, someone is bound to get hurt.

俗话说,两虎相争,必有一伤,与其斗得两败俱伤,不如握手言和。

References

see 两虎相斗,必有一伤/兩虎相鬥,必有一傷 两虎相争,必有一伤/兩虎相爭,必有一傷
see 二虎相斗,必有一伤/二虎相鬥,必有一傷 两虎相争,必有一伤/兩虎相爭,必有一傷