Having vaginal sex with the wife from her behind

Question 5: Is it permissible for a husband to have vaginal sex with his wife from her back with or without an excuse, or is it impermissible?

Answer: It is permissible for the husband to have sexual intercourse with his wife from the back as long as they will have vaginal and not anal intercourse. Anal intercourse is unlawful in any way according to the saying of Allaah (Exalted be He)… read more here.