Is ghusl required if intercourse takes place with a barrier?
Question

                If intercourse takes place with a barrier, alike some of the things that are used nowadays (condoms), is ghusl required?.
Praise be to Allah.If there is emission of 
    semen, then ghusl is required because of ejaculation, because the Prophet 
     (peace and blessings of Allaah be upon him) said: “Water is for water.” 
    Narrated by Muslim, 343.

     But if there is no emission of semen, the scholars differed 
    concerning this matter and there are three opinions: 

    1 – That ghusl is required of both the man and the woman, 
    regardless of whether the barrier is thick or thin. This is the view of 
    al-Shaafa’i (may Allaah have mercy on him). 

    Al-Nawawi said: 

    If he wraps a piece of cloth around his penis and inserts it 
    until the tip disappears, but does not ejaculate, the correct view is that 
    ghusl is required of both of them, because the rulings have to do with 
    penetration, and this has taken place. End quote. 

    Al-Majmoo’, 2/150 

    2 – That ghusl is not required at all. This is the view of 
    the Hanbalis, as stated in al-Insaaf (2/92), because the two parts 
    have not met due to the presence of the barrier. 

    3 – That if the barrier is so thin that heat and pleasure can 
    be felt, then ghusl is required, otherwise it is not. This is the view of 
    the Maalikis as stated in al-Mawsoo’ah, 11/201. 
Ibn ‘Uthaymeen said 
    concerning this third opinion: This is the most likely to be correct, but to 
    be on the safe side ghusl should be done. End quote. 

    Al-Sharh al-Mumti’, 1/234.