The Husband is Required to Provide
Question :
If the wife has a job and she receives a good salary, is it incumbent upon the husband to provide for her? And what will the situation be, if his income is little?
Answer:
It is an obligation upon the husband to provide for his wife, even if she has a good salary, because his providing for her is in return for the pleasure which he gets from her - even though his income may be little, unless the woman is good- natured and is indulgent towards her husband regarding provision, then the matter is up to her.
Source:
Ibn 'Uthaimin
Fatawa Islamiyah, Vol. 5 Pages 183-184