黃河百害，唯富一套 [黄－－－－－－－－]

Jyutping wong4 ho4 baak3 hoi6 ， wai4 fu3 jat1 tou3
Pinyin huáng hé bǎi hài ， wéi fù yī tào

Definitions (Wiktionary)
  1. proverb
    The Yellow River causes extensive harm with its floods and only benefits the Hetao region