Ruling on a woman praying with her hair, hands, and feet uncovered

Question:
Is a woman's prayer valid if she is wearing tight clothing and some of her head hair is exposed, as well as jewelry and her hands, provided she is not in the presence of non-mahram men? And is it better for a woman to wear an abaya during prayer?

Answer:
A woman must cover herself in prayer; it is obligatory for her to cover her body in prayer, except for the face. She must wear a jilbab or covering clothes that conceal her entire body. The hair must be covered, even in her house, even if no one is present; she must cover herself.
The Prophet (peace and blessings be upon him) said: The menstruating woman, meaning the one who has reached puberty, her prayer is not accepted except with a khimar, meaning a covering. Therefore, she must cover all of her hair and all of her body in prayer, including her feet, either with socks or with a loose covering garment that conceals her feet.
As for the two hands, if she covers them, that is more cautious; if she leaves them uncovered, the prayer is valid, but covering the hands is better and more cautious. Only the face remains; she may leave her face uncovered in prayer if there are no non-mahram men present, if only women or her husband are present, she prays with her face uncovered. However, the hair and the entire body must be covered. As for the feet, other than the hands, the ruling is more lenient; if she covers them, that is good, and if she leaves them uncovered along with the face, the matter is lenient.