Praise be to Allah.
When Allah, may He be exalted, and His Messenger (peace and blessings of Allah be upon him) enjoin something, it is obligatory for the Muslim to say, “We hear and we obey,” and to hasten to carry out what has been enjoined upon him. This is what is required by faith in Allah.
Allah says (interpretation of the meaning):
“It is not for a believer, man or woman, when Allah and His Messenger have decreed a matter that they should have any option in their decision. And whoever disobeys Allah and His Messenger, he has indeed strayed into a plain error”
Shaykh ‘Abd al-Rahmaan al-Sa’di (may Allah have mercy on him) said:
“It is not for a believer, man or woman” means: it is not appropriate or befitting for the one who is described as a believer to do anything other than to hasten to please Allah and His Messenger, and to flee from incurring the wrath of Allah and His Messenger, and to obey their commands, and to avoid that which they have prohibited. It is not appropriate for a believing man or a believing woman “when Allah and His Messenger have decreed a matter” and enjoined it, “that they should have any option in their decision”. They do not have the choice of whether to do it or not, rather the believing man and the believing woman know that the Messenger is dearer to them then their own selves, so they should not let their own whims and desires form a barrier between them and obeying the command of Allah and His Messenger.
“And whoever disobeys Allah and His Messenger, he has indeed strayed into a plain error” means, an obvious error, because he has forsaken the Straight Path which leads to the reward of Allah, and has strayed to another path which leads to a painful torment. So Allah mentions first the reason for not going against the command of Allah and His Messenger, which is faith, then He mentions the deterrent for that, which is fear of going astray, which leads to punishment and humiliation. End quote.
Tafseer al-Sa’di, p. 612.
The Messenger (peace and blessings of Allah be upon him) told us that the one who disobeys him is the one who does not want to enter Paradise! Al-Bukhaari (7280) narrated from Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said: “All of my ummah will enter Paradise except those who refuse.” They said: “O Messenger of Allah, who would refuse?” He said: “Whoever obeys me will enter Paradise and whoever disobeys me has refused.”
When the command of hijab came, the first Muslim women hastened to obey it, so much so that the women tore their clothes in order to hasten to obey this command. This is what is meant by faith.
It was narrated that ‘Aa’ishah (may Allah be pleased with her) said: May Allah have mercy on the women of the early muhaajireen. When Allah revealed the words “and to draw their veils all over Juyoobihinna (i.e. their bodies, faces, necks and bosoms)”, they tore their aprons and covered their faces with them. Narrated by al-Bukhaari in a mu’allaq report and by Abu Dawood (4102); classed as saheeh by al-Albaani in Saheeh Abi Dawood.
Al-Haafiz Ibn Hajar said:
Muroot, sing. murt (translated here as “aprons”) refers to the izaar or lower garment.
Our advice to those sisters is to hasten to obey the command of Allah without any hesitation, and not to try to obey part of the command and neglect part of it. It is obligatory for a woman to cover her hair, face and all of her body, and it is not permissible for her to show any part of that in front of non-mahram men. Whoever does that is exposing herself to the threat and is lacking in faith to the extent that she is failing to respond to the command of Allah.
And Allah knows best.
(Source: Islam Q&A)