ANSWER:

This is totally prohibited and if done intentionally, her prayer is invalid!

She must completely cover herself from head to toe, except for face and hands while praying and a very loose abaya over your normal clothes and a scarf that covers all your hair and chest area does the job perfectly. 

QUESTION: When a woman prays, if her hair is wet( because of ghusl), can her hair on the back be seen or does she have to cover herself in the front and the backside? Will she be sinful for letting her hair be exposed on the back?

Prayer, Women clothing |