This is from the same article that you provide.
As for the controversial part of the issue, we should think of it as a sign of Allah’s mercy that He left some things open, so that there will be no hardship for people, and that they can make use of such things according to their own benefit. For example, if a woman is so beautiful to the extent that she attracts men’s attention and her beauty tempts them, she would cover her face, as an aspect of preventing harm, even if it is agreed that niqab is not obligatory. On the other hand, some women may have some breathing or skin problems that they do not tolerate wearing face cover. Here, we realize that the difference of opinion in relation to niqab is really an aspect of Allah’s mercy
and this something from another place
The dress worn in public must cover the entire body except what has been specifically excluded, based upon the following proofs: Allah says:
" And tell the believing women to lower their gaze and guard their private parts from sin and not show of their adornment except only that which is apparent, and draw their headcovers over their necks and bosoms and not reveal their adornment except to And that they should not I strike their feet in order to draw attention to their hidden ornaments. And 0 you Believers! Turn you all together towards Allah in repentence that you may be successful." (24:31)
The word zeenah in the Ayah above, literally means adornment and includes both the woman’s natural or physical beauty, and that with which they adorn themselves, such as, jewelry, eye shadow, attractive clothing, hand dye, etc.
Surah An-Nur spells out specifically the commands concerning the fact that a woman’s natural beauty and her adornments are to be concealed from strangers except by what may show due to accidental or uncontrollable factors such as the blowing of the wind, etc., and what has been exempted
Allah says: “0 Prophet! Tell your wives and your daughters and the women of the believers to draw their outer garments above themselves ( when they go out). That is better so that they may be recognized and not molested. And Allah is Forgiving, Merciful.” (33:59)
Abu Dawood narrates that Aishah (raa) said: " Asma’a the daughter of Abu Bakr (raa) came to see the Messenger of Allah (Sallallahu Alayhi Wasallam) wearing a thin dress; so Allah’s Messenger (Sallallahu Alayhi Wasallam) turned away from her and said: "0 Asma’a, once a woman reaches the age of puberty, no part of her body should be seen but this -and he pointed to his face and hands. "
The word khumur (pI. of khimar) refers to a cloth which covers the head, ears, hair, neck and bosom. The esteemed mufaasir (Qur’anic interpreter) Al-Qurtubi explains: Women in the past used to cover their heads with the khimar, throwing its ends over their backs. This left the neck and the upper part of the chest bare, in the manner of the Christians. Then Allah commanded them to cover those parts with the khimar.
Allah states further in this Ayah: "… And let them not stamp their feet so as to reveal what they hide of their adornments " The women in the time of the Prophet (Sallallahu Alayhi Wasallam) wore anklets which could be employed to attract attention by stamping their feet, thereby, making the anklets tinkle. This practice is not only forbidden by Allah, but shows that the legs and ankles are to be covered as well. Some of the modern day Hanafi scholars are of the mistaken view that a woman can display her feet, a portion of her forearms and the! ears; yet there is no authentic proof from the practice of the Prophet (Sallallahu Alayhi Wasallam) or his Sahabah to uphold such a view.
Amongst the authentic Ahadith which clarify this point is the following: Ibn Umar (raa) reported that the Messenger of Allah (Sallallahu Alayhi Wasallam) said: “ On the Day of Resurrection, Allah will not look at the man who trails his garments along out of pride”. Umm Salamah then asked:” What should women do with (the hems of) their garments?” He replied: “Let them lower them a bandspan”. She replied: “ Their feet would be exposed!” He then said: “Let them lower them a forearm’s length but no more.” (Reported by At-Tabarani- Sahih)
The major point of difference among the scholars concerns the hadith of Asma’a (raa) i.e., that the face and hands need not be covered; a number of the scholars have maintained that the face hands must also be covered, because it was the practice of the of the Prophet (Sallallahu Alayhi Wasallam) and the wives of the Sahabah to themselves completely according to authentic Ahadith. The above point has been a topic of debate amongst the scholars both past and present and will be dealt with,
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You already have good answer from ThandyMazaq but bahee Allah gave many exemption to women /Musafir during some time to not to pray ..is this means it is unIslamic?
If face covering is not obligatory then why there is an order to not to cover hands/face during Hajj/prayer..
How can women know that somebody is start looking her ..
And Allaah knows best.