Q.| What is the duty of a woman whose husband’s income is gained through Islamically illegitimate and impermissible means?  Does she need to be divorce?

A.| Divorce is not necessary.  So long as she is not certain that the particular money or property she is using is an illegitimate financial gain, she is permitted to make use of it.  She is obligated to refrain from using or benefitting from the money or property she is certain is an illegitimate financial gain.