Reading books containing images in the mosque?

Question : The questioner says: Honorable Shaykh, I am a student and I have exams after the festival. I have performed i'tikaf (spiritual retreat) in the Sacred Mosque, and I brought some school books that contain images. Is there any sin on me for this?

Answer : There is no sin on the one performing i'tikaf if he reviews the lessons for which he will be tested. As for the images, the matter is easy; he can cover their faces so that it is not clear that they are images, and thus he is safe from their evil.