And it shall be, if you do not desire her, then you shall send her away for herself; you shall not sell her for money; you shall not treat her as a slave, because you have afflicted her.
English: “And you shall send her away for herself” — this teaches that if she is ill he must wait until she recovers; and this is a kal va-chomer for the daughters of Israel.
On the daf / in context: “Le-nafshah” implies she must be able to leave under her own power. Therefore a sick woman may not be dismissed until she is well. The same consideration applies a fortiori to an ordinary Jewish wife.
Type of Learning
Kal va-chomer from the captive woman to the daughters of Israel.
What Is Learned
One may not divorce a woman while she is ill; he must wait until she recovers. This rule is derived from the captive-woman law and applies even more strongly to ordinary Jewish wives.