What is the ruling on a woman praying unveiled, and what is your advice to me?

The hijab is an obligation upon women; it is a sign of their modesty, good manners, and their Lord's pleasure. The prayer of a woman who does not wear the hijab is valid if it fulfills its pillars and conditions, among which is covering the entire body except for the face and hands. We advise our Muslim sister to hasten to wear the hijab.