Narrated from Sayyiduna Ali bin Taliq (may Allah be pleased with him): A Bedouin came to the Noble Prophet (peace and blessings be upon him) and said: O Messenger of Allah! We live in the desert and sometimes one of us passes wind. The Prophet (peace and blessings be upon him) said: Allah does not shy away from the truth. When this happens to someone, he should perform ablution, and do not approach women from behind.
Hadith Takhrij«اسناده ضعيف، مسلم بن سلام لم يرو عنه غير واحد ولم يوثقه غير ابن حبان، وادراج ھذا الحديث في مسند علي بن ابي طالب B خطأ، فانه من مسند علي بن طلق، أخرجه ابوداود: 205، 1005، والترمذي: 1164، 1166، (انظر مسند أحمد ترقيم الرسالة: 655 ترقیم بيت الأفكار الدولية: 655»
Narrated by Sayyiduna Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Allah Almighty will not look at the man who approaches his wife from the back, Allah Almighty will not look at him.
It is also narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Cursed is the man who approaches his wife from the back.
It is narrated from Sayyiduna Khuzaymah bin Thabit (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Verily, Allah does not shy away from the truth. Do not approach women from the back (i.e., do not have unnatural intercourse with them).
It is narrated from Hammam, he says that Imam Qatadah was asked about the person who has intercourse with his wife from behind. He said: Amr bin Shu'aib narrated to us from his father, and he from his grandfather, Sayyiduna Abdullah bin Amr bin al-As (may Allah be pleased with them), that the Messenger of Allah (peace and blessings be upon him) said: This is a lesser degree of sodomy. Sayyiduna Abu Darda (may Allah be pleased with him) said: Only a disbeliever can do this act.