"Such of your women as have passed the age of monthly courses, for them the prescribed period, if ye have any doubts, is three months, and for those who have no courses (it is the same): for those who carry (life within their wombs), their period is until they deliver their burdens: and for those who fear Allah, He will make their path easy." - Quran 65:4 (read more)

"....The women asked, "O Allah's Apostle! What is deficient in our intelligence and religion?" He said, "Is not the evidence of two women equal to the witness of one man?" They replied in the affirmative. He said, "This is the deficiency in her intelligence. Isn't it true that a woman can neither pray nor fast during her menses?" The women replied in the affirmative. He said, "This is the deficiency in her religion." - Sahih Bukhari 1:6:301 (read more)

"There is consensus amongst the Ulama of all four schools of thought (Mazaahib), that it is obligatory upon women to cover their faces when fitnah and evil is apprehended. There is no doubt of the widespread fitnah and prevalent evil nowadays. Hence it is imperative (waajib) for women to cover their faces when leaving their homes or in the presence of non-mahram males." - Mufti Shafiq Jakhura