Reference: Fataawa Noor ‘alad-Darb – Question No.5826, Pages 258-259, Volume 11
Question: What are the permissible areas in which a Muslim woman can work without opposing the teachings of her religion?
Response: The areas in which a woman can work are those which are specific to women, such as her teaching girls – whether that work is in administration or technical; [in addition] she can work at home sewing women’s clothing and that which is similar. As for working in areas which are [generally] specific to men, then that is not permissible for her to do, since doing so necessitates her free mixing with men, and that is a great fitnah which should be avoided. And it is obligatory to know it has been authentically reported that the Prophet (sal-Allaahu ‘alayhi wa sallam) said:
And [it is also important to note] that Banee Israa.eel fell into the fitnah of women, so the man [who is responsible for his family] – in all circumstances must protect his family from [all] fitnahs and their causes.