condition, then he is bound by it, for the Prophet ﷺ said: “The conditions most deserving of fulfilment are those by which you made private relations lawful.” (1)
If someone were to say: What if she did not stipulate this, but is compelled to work as a teacher because her husband is poor and does not spend on her?
The answer is: she has no right to do so; rather, she may give him a choice, saying: “Either permit me to teach and earn my livelihood, or I will seek annulment,” because she cannot remain without sustenance. In my view, if she gives him this choice, he will agree to her teaching.
His statement, “and from nursing her child from another husband, except out of necessity,” refers to the case of a woman divorced by her first husband while she is pregnant. Her waiting period ends when she gives birth, and then she marries another man while she is still nursing the child. The second husband may prevent her from nursing her child from her first husband, except in two cases:
The first is necessity: namely, when the child will not accept any breast other than that of his mother. In that case, he must be saved.
The second is that she stipulates this to her second husband; if he agrees, he is bound by it.
His statement, “her child from another husband,” indicates that he has no right to prevent her from nursing her child by him. This is correct, unless the mother has an illness from which the child is feared to suffer.