• First: On the authority of Umm Salama who said: "When the Muhajireen came to Ansaar at al-Madeenah, some of them married women from the Ansaar. The women of the Muhajireen used to lie on their faces (during intercourse), while the women of the Ansaar never did it that way. Then, one of the men of the Muhajireen wanted his wife to do that. She refused until such time as she could ask the Prophet about it. She went to the Prophet but was embarassed to ask the question, adn so Umm Salama asked him. Then the verse was revealed which says: "Your wives are as a tilth unto you; so approach your tilth when or how ye will;" [al-Baqarah 2:223]. The Prophet said: "No! (not any way you wish) Except in one opening! (ie. the vagina)". [Ahmad, at-Tirmidhee and others : Saheeh]
• Second: On the authority of Ibn 'Abbaas who said: "'Umar ibn Al-Khattaab came to the Prophet and said: 'O Messenger of Allaah, I am destroyed!' The Prophet asked: 'And what has destroyed you, O 'Umar?' 'Umar said: `I turned my mount around last night.' (An expression which means he has sexual intercourse with his wife penetrating the vagina while mounting her from the rear.) The Prophet gave him no answer and when the revelation came and the verse was revealed which says: "Your wives are as a tilth unto you; so approach your tilth when or how ye will;" [al-Baqarah 2:223] and the Prophet said: "From the front and from the back, just beware of her anus and her menses". [an-Nasaa'ee in "`Ishratun-Nisaa" with hasan isnaad, at-Tirmidhee and others].
• Third: On the authority of Khuzaima ibn Thaabit who said: "A man asked the Prophet about entering women in the rear, or the entering by a man of his wife in her rear, and the Prohet answered: `Halaal (ie. permissible).' When the man turned to leave, the Prophet called him or ordered for him to be called back and said : "What did you say? In which of the 2 openings did you mean? If what you meant was from her rear and in her vagina, then yes. But if what you meant was from her rear and in her anus, then no. Verily Allaah is not ashamed of the truth - do not enter your wives in their anuses!" [as-Shaafi, al-Baihaqi and others: Saheeh]
• Fourth: "Allaah does not look at one who comes to his wife in her anus". [an-Nasaa'ee: Hasan isnaad and supported in "al-'Ishrah"; at-Tirmidhee and Ibn Hibbaan].
• Fifth: "Cursed are those who come to their wives in their anuses." [Aboo Dawood, Ahmad and others with hasan isnaad and is supported].

Sixth: "Whoever has sexual intercourse with a mentruating woman, or a woman in her anus, or approaches a soothsayer and believes what he is told has disbelieved in that which was revealed to Muhammad ". [Aboo Dawood, at-Tirmidhee and others: Saheeh].