The Meaning of the Niqab, Khimar, and Hijab, and What Suffices for a Woman from Them

Our sister asks, Your Eminence: What is obligatory by the Shari'ah: the niqab, the khimar, or the hijab?
Answer: They all mean the same thing. The hijab can be achieved with the khimar, with the niqab, with the jilbab, or with something else... or by being behind a door, where he is in one room and she is in another, or in a tent where he is in one tent and she is in another, or from outside the tent. The point is that she covers herself from the non-mahram, even with the khimar that she throws over her head and face, or with the jilbab that she throws over her face and head, or with the niqab from which nothing is visible except the eye or the two eyes, and the rest is covered; the whole face is covered except for the eye so she can see, or the two eyes so she can see. Yes.
The presenter: And what about the eye, Your Eminence?
The Shaykh: Yes, but it is easier than exposing it... It was narrated from Ibn Abbas that he said: ... Al-Hasan ibn Abi al-Talhayah narrated it from Ibn Abbas, saying: So if she exposes one eye or the two eyes, there is no prohibition, if Allah wills. Yes.