Exodus 21 21
However, if after a day or two the slave gets better, the owner won't be punished because the slave is their property.
Compare with other 3 random translations
ERV Exodus 21:21But if the slave gets up after a few days, then the master will not be punished. That is because someone paid their money for the slave, and the slave belongs to them.
WEB Exodus 21:21Notwithstanding, if his servant gets up after a day or two, he shall not be punished, for the servant is his property.
YLT Exodus 21:21only if he remain a day, or two days, he is not avenged, for he is his money.