Ruling on preventing women with improper hijab from entering the mosque

Dear Brothers & Sisters,
As-Salaamu-Alaikum wa Rahmatullahi wa Barakatuh. (May Allah's Peace, Mercy and Blessings be upon all of you)
One of our brothers/sisters has asked this question:
Is it permissible to prohibit women who are not covered in the proper islaamic covering from entering the masjid ? (after they have been given the proper naseeha) Please advise the daleel.
Jazzakallahu khayrun
(There may be some grammatical and spelling errors in the above statement. The forum does not change anything from questions, comments and statements received from our readers for circulation in confidentiality.)
Check below answers in case you are looking for other related questions:
His wife does not think that niqaab is obligatory; should he force her to wear it?
Confused about women covering their faces

Answer:

Praise be to Allaah Alone, and peace and blessings be upon him after whom there is no Prophet.

If a woman comes to the mosque wearing improper hijab, then according to Islam she should be advised and have explained to her – with the daleel or proof – the fact that hijab is obligatory, and the seriousness of neglecting it. If she then complies, then praise be to Allah. If she does not comply, then do not let her enter, because of the fitnah (temptation) and evil involved in her actions. The Prophet (peace and blessings of Allaah be upon him) said: “Any woman who has put on bukhoor (incense, fragrance) should not attend this ‘Isha’ prayer with us.”

(Reported by Muslim, 675). And he (peace and blessings of Allaah be upon him) said concerning women’s going out to the mosque: “Let them go out unperfumed” (reported by Abu Dawood, 478), i.e., not wearing any perfume. Women have to go out wearing complete Islamic hijab, and not wearing adornment or perfume. And Allaah knows best.
Whatever written of Truth and benefit is only due to Allah's Assistance and Guidance, and whatever of error is of me. Allah Alone Knows Best and He is the Only Source of Strength.
Your brother and well wisher in Islam

Related Answers:
Wearing short clothes in front of one’s sons
Putting a permanent white veneer on the teeth
Her parents are threatening to hit her if she covers her face
His wife does not think that niqaab is obligatory; should he force her to wear it?
Confused about women covering their faces

Recommended answers for you:
Ruling on piercing women’s ears
Does touching the penis invalidate wudoo’
Ruling on suicide and on offering the funeral prayer and praying for one who has committed suicide
Virtues of the Day of Arafaah
Does women’s hijab have to be black?