Covering the grave of a woman when she is placed in it
Question

                I am from Bangladesh. In our country there is a culture, while putting a woman in to grave a long cloth i.e sort of bed cover, is placed over as a shade. In answer to it people say that women are to make hijab even after she dies. Is it supported by any Daleel?.
Praise be to Allah.
    It is mustahabb to cover the grave of a woman as she is being 
    placed in it, because that is more concealing for her. 

    Ibn Qudaamah (may Allaah have mercy on him) said in 
    al-Mughni (2/190): The woman’s grave should be covered with a cloth. We 
    do not know of any scholar who differed from the view that this is 
    mustahabb. Ibn Sireen narrated that ‘Umar used to cover the graves of women, 
    and it was narrated from ‘Ali that he passed by some people who were burying 
    a dead person and they had spread a cloth over his grave. He took it away 
    and said: This is only to be done for women. Anas ibn Maalik was present at 
    the burial of Abu Zayd al-Ansaari; the grave was covered with a cloth and 
    ‘Abd-Allaah ibn Anas said: Take off the cloth, for only the graves of women 
    are to be covered. Anas was present at the graveside and he did not object. 
    Because a woman is ‘awrah and there is no guarantee that some part of her 
    may not become uncovered and be seen by those present. End quote. 

    Shaykh Ibn ‘Uthaymeen (may Allaah have mercy on him) was 
    asked: What is the ruling on covering the grave of a woman when she is 
    lowered into the grave, and how long should the cover remain? 

    He replied: Some of the scholars stated that the grave of a 
    woman should be covered when she is placed in her grave, lest the features 
    of her body become apparent, but this is not obligatory. This covering 
    should be left until the bricks are placed over her. End quote. 

    Majmoo’ Fataawa Ibn ‘Uthaymeen 
    (17/173). 

    He also (may Allaah have mercy on him) said in Liqa’ 
    al-Baab il-Maftooh: As for placing an ‘abayah over the grave when the 
    woman is lowered into it, that is good. It was mentioned by the scholars who 
    said: The grave of a woman should be covered when she is placed in it. End 
    quote. 

    And Allaah knows best.