Fathwa, - Necessity of outer garment for females?

Question:
Is it necessary for females to wear an outer garment over their
clothes to cover themselves if their clothing is adequately covering
their body?
Answer:
Assalamu Alaykum wa Rahmatullah,
It is obligatory for both men and women to cover their �nakedness�
(awra), and to do so in a modest manner, such that the shape of their
limbs under this area is not defined.
An outer garment (jilbab) is one means for this for women; it is not
per se obligatory.
Wassalam.