Anal intercourse during days other than wife's menses

Q 1: What is the ruling on whoever has anal intercourse with his wife while she is not during her menstrual or postpartum period?

A: Whoever does this has committed Munkar (that which is unacceptable or disapproved of by Islamic law and Muslims of sound intellect) and must make Tawbah (repentance to Allah) and ask for Allah's Forgiveness. Moreover, he should intend not to commit such an act again and regret having done it. The same applies to the woman. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.