إتيان النساء في أدبارهن حرام
(صحيح) … [ن] عن خزيمة بن ثابت. الصحيحة 873)
It is reported that the Messenger of Allah, peace and blessings of Allah be upon him, said:
“It is forbidden to make copulation with women through their anus.”
This hadeeth was transmitted by al-Nasai to “Sunan al-Kubra” (8995) from the words of Husaima ibn Sabit, may Allah be pleased with him.
Sheikh al-Albani called the hadith authentic. See “Sahih al-Jami ‘as-sagir” (126), “al-Silsila as-sahiha” (873).