Ruling on removing hair from the moustache, armpits and pubes of the deceased, and trimming his nails
Question

                Is it permissible to trim the moustache, armpit hairs, nails and pubic hairs of the deceased?
Praise be to Allah.
    It is mustahabb to trim his moustache and clip his nails. As 
    for shaving his pubic hair and plucking his armpit hair, I do not know of 
    any evidence to indicate that this is prescribed in sharee’ah, so it is 
    better not to do that, because these areas are hidden and not visible like 
    the nails and moustache. 

    Majmoo’ Fataawa wa Maqaalaat Mutanawwi’ah li Samaahat 
    al-Shaykh ‘Abd al-‘Azeez ibn ‘Abd-Allaah ibn Baaz (may Allaah have mercy on 
    him), vol. 13, p. 114 

    The Shaykh (may Allaah have mercy on him) was also asked: 

    Should the nails and moustache of the deceased be trimmed? 

    He replied: 

    There is no evidence to indicate that. If they are trimmed a 
    little, there is nothing wrong with that. Some of the scholars stated that 
    the nails and moustache should be trimmed. As for shaving the pubes and 
    circumcision, it is not prescribed to do these things in the case of one who 
    is deceased, because there is no evidence to indicate that they should be 
    done.