Ruling Concerning Ridiculing a Woman who Wears the Proper Hijab and Covers
    Her Face
Question

                What is the ruling concerning one who
      ridicules those who wear the proper hijab and cover their faces and hands?
Praise be to Allah.Whoever ridicules a Muslim woman or man for sticking to and
    applying the teachings of Islam is a
disbeliever. This is regardless of whether it is concerning woman's hijab
    or any other matter of the Shariah. This is based
on the following narration from ibn Umar: At a gathering during the Battle
    of Tabuk, one man said, "I have not seen
anyone like our Quranic readers who is more desirous of food, more lying
    in speech and more cowardly when meeting
the enemy." A man said, "You have lied and you are a liar. I
    shall definitely tell the Messenger of Allah (peace be upon
him) about that." That news was conveyed to the Messenger of Allah
    and the Quran was revealed. Abdullah ibn Umar
added, "I saw the man holding on to the bag of the camel of the
    Messenger of Allah and the dust was striking him while he
was saying, 'O Messenger of Allah, we were just joking and playing. The
    Messenger of Allah (peace be upon him) was
simply saying the verse of the Quran],
"Was it Allah, and His Signs and His Messenger you were mocking? Make
    no excuse, you have disbelieved after you had
believed. If We pardon some of you, We will punish others among you
    because they were sinners" (al-Tauba 65-66).
So ridiculing believers has been equated with ridiculing Allah, His Signs
    and His Messenger.