锱铢必较
zī​zhū​bì​jiào

to haggle over every penny

  1. 锱铢 錙銖 zī​zhū
    tiny amount
    (bound form) very small amount or profit; refers to two ancient units of weight that represent a tiny fraction of a 两 liǎng
  2. 必 bì auxiliary
    must
    must; have to; required to; be required to
  3. 较 較 jiào verbnoun
    to compare
    (bound form) To compare; to weigh or contest. Often appears in compounds like 比较 bǐ​jiào or 较量 jiào​liàng