Ruling on bringing books which contain images into the mosque
Question

                It is well known, especially in elementary, secondary and middle school and in some universities that they have some books which contain images. What is the ruling on bringing these books to the mosque in order to study there?.
Praise be to Allah.
    With regard to the images that are prominent and visible, 
    such as those that are on the covers -- for example -- it is not permissible 
    to bring them into the mosque, because the angels do not enter a house in 
    which there are images. If the angels are offended by the smell of onions 
    and leeks, then they will be offended by these images which keep them out – 
    i.e., prevent the angels from entering the mosque. But if the images are 
    hidden and are not sought in and of themselves, then I hope that there will 
    be nothing wrong with that, because they are hidden inside the book and also 
    they are not the purpose for which the book is brought. If a person thinks 
    that he can do what is better and more perfect, and can erase the faces, 
    then the problem is resolved. End quote. 

    And Allaah knows best. 

    Shaykh Muhammad ibn Saalih al-‘Uthaymeen (may Allaah have mercy on him)